Frog heart

Business & Finance Pets & Animals Science & Technology What Is the Main Difference Between a Human Heart and Frog Heart? By Staff WriterLast Updated March 25, 2020 Holley And Chris Melton/CC-BY 2.0

Circulatory System Circulatory system helps to carry oxygen and other required nutrients.The Circulatory System of frogs are closed type (inside blood vessels).More: https://www.iworx.com/teaching-landing/illustrations-and-movies/Answer and Explanation: 1. Become a Study.com member to unlock this answer! Create your account. View this answer. Frogs and humans have different types of hearts. The biggest difference is that our hearts are four-chambered, while a frog has a three-chambered... See full answer below. Solution. The truncus arteriosus is formed of a basal thick-walled conus arteriosus and a distal thin-walled ventral aorta. Its conus arteriosus part which is next to the ventricle is known as pylangium and the distal ventral part as synangium. Pylangium is a short tubular structure, while synangium is simply formed by the union of the basal ...Sep 25, 2023 · Heart Piece #3: As a child, go to Lon Lon Ranch and enter the storage building at the back of the ranch. Pull the crates back to reach the far corner where you will find a hole you can crawl through. This leads to a little area with a Piece of Heart in a nest. Location: Gerudo Valley. Conditions: Reach Gerudo Valley. 01. Experiment on effects of various drugs (Mydriatic, Miotic and Local Anaesthetic) on rabbit's eye. - Epinephrine - Atropine - Ephedrine - Physostigmine - Lignocaine 02. …

ITolated frog's heart, 26 (winter series). Therelation of the beats to temperature, as in the others, was investigated only whenthe steady state had been established. Circles, comingdown; crosses, going up; squares, comingdownasecondtime. Atypicalcurve of the effect of temperature onthe beat of thefrog's heart, so far as reproductibility of heart rate …Apr 24, 2019 · Frogs are amphibians and have a closed circulatory system. Unless there is an abnormal mutation present, frogs only have one heart to pump blood throughout the body. A frog has a three-chambered heart. The chambers include two atria and a ventricle. The right atrium receives deoxygenated blood from the veins. Feb 5, 2014 · As can be seen in the exposed frog heart, this causes the atria to contract before the ventricles. Unlike mammals, however, frogs only have one ventricle (Figure 1). Figure 1. The pacemaker is myogenic. A special group of myocytes in the atrium have an unstable membrane potential that depolarizes and repolarizes regularly. All the GIFs. Find GIFs with the latest and newest hashtags! Search, discover and share your favorite Frog GIFs.Sep 14, 2023 · Ringer’s solution, one of the first laboratory solutions of salts in water shown to prolong greatly the survival time of excised tissue; it was introduced by the physiologist Sidney Ringer in 1882 for the frog heart. The solution contains sodium chloride, potassium chloride, calcium chloride, and.

While there are quite a few differences between the circulatory systems in the human and the frog, the primary difference between the two hearts is the number of chambers; frog hearts have two atria and one ventricle, while human hearts hav...Jul 31, 2011 · This study guide is easy to understand, yet has thorough information including a downloadable diagram of a frog's circulatory system and heart. Also covered is a full description of how the frog's three-chambered heart works. If you need to learn about this topic for a school project in science or biology, or you are just interested in frogs and their anatomy, then you will value ... ABSTRACT. A seasonal difference in the temperature-pulse rate curve of the isolated frog’s heart was described by Barcroft & Izquierdo (1931). In the summer they found an almost linear relation between temperature and frequency of pulsation from 5 to 20° C., while in the winter the relation was exponential over the same temperature range. Carter (1933) investigated the effects of various ... Bathe the heart in room temperature Frog Ringer’s before continuing to Part E. E. Starling’s law of the heart Starling’s law addresses cardiac performance when cardiac muscle is stretched 1. Record 10 seconds of baseline data. 2. While recording, slowly increase the tension on the heart by turning the micropositioner knob. Add a Small Size – Most tree frogs are so small they can sit comfortably on the tip of your finger. Teeth – Guenther’s marsupial frog ( Gastrotheca guentheri) is the only frog that has teeth in their lower jaw. Poisonous – Simply touching the yellow banded poison dart frog ( Dendrobates leucomelas) can lead to heart failure.The male frog guards the females’ fertilized eggs placed on leaves until they hatch and the tadpoles fall into the water. The translucent skin of some species permits an observer to see the frog’s beating heart. Glass frogs live up to 14 years. Scientific Name. The scientific name of the glass frog is Centrolenidae. “Centro” is Spanish ...

Skyward crowley login.

11.The frog's heart receives both oxygenated and deoxygenated blood. The deoxygenated blood remain separate in the auricles but get mixed in the ventricle. 12.Blood passes only once through the heart in a complete circuit. 12.Blood passes through the heart twice in a complete circuit. 13.Such type of arrangement is absent. A frog is a classical model organism used to uncover processes and regulations of early vertebrate development, including heart development. Recently, we showed that a frog also represents a useful model to study a rare human congenital heart disease, hypoplastic left heart syndrome. In this review, we first summarized the cellular …ABSTRACT. A seasonal difference in the temperature-pulse rate curve of the isolated frog’s heart was described by Barcroft & Izquierdo (1931). In the summer they found an almost linear relation between temperature and frequency of pulsation from 5 to 20° C., while in the winter the relation was exponential over the same temperature range. Carter (1933) investigated the effects of various ...Find & Download the most popular Frog Heart PSD on Freepik Free for commercial use High Quality Images Made for Creative Projects. #freepik #psdThe heart of the African clawed frog has a double-inlet and single-outlet ventricle supporting systemic and pulmonary circulations via a truncus, and a lifespan of 25-30 years.

Frogs have a three-chambered heart, consisting of two atria and a single ventricle. Blood leaving the ventricle passes into a forked aorta, where the blood has an equal opportunity to travel through a circuit of …Frog is pithed, dissected, the heart is removed and perfused through the sinus venosus. Insert a curved needle in the apex of the heart and attach it to a Starling's heart lever. Record the contractions. PROCEDURE 1. Note the normal heart rate, by counting each upstroke (systole) and downstroke (diastole) of the moving drum together as one beat for …Columnae carneae are muscles found in the heart ventricles which aid in the heart's pumping action. So, the correct answer is, ‘(a) Purkinje fibres’. Note: The heart of the frog is composed of three chambers, a ventricle and two atria. The Purkinje fibres are special conducting fibres consisting mainly of electrically excitable cells that ...While there are quite a few differences between the circulatory systems in the human and the frog, the primary difference between the two hearts is the number of chambers; frog hearts have two atria and one ventricle, while human hearts hav...NIEDERGERKE R. MOVEMENTS OF CA IN FROG HEART VENTRICLES AT REST AND DURING CONTRACTURES. J Physiol. 1963 Jul; 167:515–550. [PMC free article] [Google Scholar] NIEDERGERKE R. Movements of Ca in beating ventricles of the frog heart. J Physiol. 1963 Jul; 167:551–580. [PMC free article] [Google Scholar] Oliver G, Schäfer EA.Aug 8, 2012 · A, at identical heart rates and normalized to heart weight, toad hearts exhibited a trend of smaller stroke volume than that of frog hearts. This difference was primarily due to the larger size of the toad heart normalized to body weights ( Table 1 ), whereas the actual stoke volumes of toad and frog hearts were similar if normalized to the ... While there are quite a few differences between the circulatory systems in the human and the frog, the primary difference between the two hearts is the number of chambers; frog hearts have two atria and one ventricle, while human hearts have two atria and two ventricles. The frog's right atrium gets deoxygenated blood out of the vessels that come from the bodily organs, and the left atrium ...In the frog, they are located near the junction of the vena cava and the right atrium, a region called the sinus venosus. These cells have an intrinsic heart rate, which can be increased by the sympathetic nervous system and decreased by the parasympathetic nervous system.In the frog, Rana, venous blood is driven into the right atrium of the heart by contraction of the sinus venosus, and it flows into the left atrium from the lungs. A wave of contraction then spreads over the whole atrium and drives blood into the ventricle, where blood from the two sources tends to remain separate.human anatomy biology Do Frogs Have Internal Organs? © Don Farrall—DigitalVision/Getty Images Like humans, frogs are vertebrates, or animals with backbones. The frog body may be divided into a head, a trunk, and limbs. The flat head contains the brain, mouth, eyes, ears, and nose. A short, almost rigid neck permits only limited head movement.).To experiment on a mammalian heart, the tissue must be maintained at 37 ˚ C and aerated vigorously with a special gas mixture. To be sure, there are differences between the mammalian and amphibian heart. The frog heart is three chambered (Figures 1 – 3) compared to four in the mammalian heart. The frog’s

Nov 13, 2015 · Species of frog may vary greatly in size, behavior, and habitat, but they all have something in common; the same kind of blood and the same type of heart that pumps it through their bodies. Unlike most mammalian species, frogs and other amphibians possess nucleated blood cells, which is an indication of their less evolved nature.

Sinus venosus and conus arteriosus are not found in rabbit but they are present in the frog. In the rabbit, sinus venosus is formed in the embryo but later it becomes a part of the wall of the right auricle. So the impure (deoxygenated) blood collected by the precavals and postcavals directly comes into the right auricle.The frog's heart stops beating, its kidneys stop functioning and its respiration ceases--for months. The frogs endure this suspended animation by producing a type of antifreeze made with glucose, keeping the water in their cells in a liquid state at temperatures below 32 degrees Fahrenheit (0 degrees Celsius).Long lasting cardiac hypertrophy occurs in amputated frog heart. Cardiomyocytes were observed at the site of amputation (A, D, G, J, M, P) and in a remote zone of the amputated ventricle (B, E, H, K, N, Q), using immuno-detection of natriuretic peptide A as an indicator of cardiac hypertrophy. Sections were labelled for tropomyosin (CH1, red ...Heart. The frog’s heart is the small triangular organ at the top. Unlike a mammal heart, it only has three chambers — two atria at the top and one ventricle below. Carefully cut away the pericardium, the thin membrane surrounding the heart. Notice the arteries connected to the top of the heart, giving it a ‘Y’ shape. Liver. Just below ...3. Loop the thread from the frog heart to the force transducer S-hook Pull the thread so there is a little tension on the thread. Position the frog so the thread from the heart is vertical, so the heart's not pulling at an angle (you want a truer reflection of the heart's contractile force). Don't worry about the stand height at this point.Which of the following is true of the cardiac action potential? The cardiac action potential is longer than the skeletal muscle action potential. The main anatomical difference between the frog heart and the human heart is that the frog heart has. a single, fused ventricle. The amplitude of the ventricular systole did not change with the more ...Jan 13, 2006 · To measure the rate and strength of heart contraction, you will attach the exposed frog heart to a force transducer and record the force exerted by the contraction of the atria and ventricle. With this preparation, you can manipulate temperature, apply neurotransmitters, apply electrical stimuli directly to the heart, and create partial or ... The heart of the frog has three chambers, one ventricle and two atria. Blood leaves the heart from the ventricle through a single truncus arteriosus which is short and soon branches into two aortic arches which loop left and right and dorsal to the heart to rejoin as a single aorta in the mid dorsal region of the body cavity.– Figure 1: Control values of contraction and electrograms from the frog heart. The upper panel contains a sample of contraction recorded before any intervention under mild pretension. The lower panel contains the simultaneously recorded bipolar electrograms from the exposed ventral surface of the (single) ventricle. Explanation: Frog's heart has two accessory chambers, Sinus Venosus for receiving blood from body and Conus Arteriosus for sending the blood out from heart. Human heart does not possess such chambers. Blood from body enters directly in right auricle and blood is pumped out by two ventricles. Frog's heart has one ventricle, hence deoxygenated ...

Louisville accidents today.

Swift transportation lease purchase reviews.

What type of heart is found in frog? three-chambered heart Frogs have a three-chambered heart. It consists of two atria and one ventricle. Why do frog hearts have 3 chambers? They have lower metabolisms, hence they require less oxygen per litre of blood. The heart of an amphibian, such as a frog, has three chambers, one ventricle and two atria.Solution. The truncus arteriosus is formed of a basal thick-walled conus arteriosus and a distal thin-walled ventral aorta. Its conus arteriosus part which is next to the ventricle is known as pylangium and the distal ventral part as synangium. Pylangium is a short tubular structure, while synangium is simply formed by the union of the basal ...Check out our frog heart selection for the very best in unique or custom, handmade pieces from our shops.The heart of frog is a dark red coloured conical muscular organ situated ventrally to the liver in the pericardial cavity along the mid-ventral line at the level of forelimbs. (a) Pericardium: The heart is enclosed within a sac formed of two membranes, an outer pericardium and an inner epicardium which closely invests the heart.The heart of the bullfrog is quite large and red and should be slowly beating. Figure3 shows a the process of removing the ribs and sternum and the exposed heart below. If the frog is still cold, the rate may be very slow so run some Ringer's solution over the heart to …The three-chambered frog heart mixes oxygenated and deoxygenated blood in the ventricle. Therefore, the body never receives fully oxygen-rich blood. In turtles, where a septum begins to form and separate the …Phillipe is very reminiscent in appearance to Wendy the frog but differentiated by his heart-shaped pink cheek patches. According to his biography, Phillipe loves to hang out with friends and play hopscotch, especially on Valentine’s Day. He was a promotional Squishmallow for the holiday, which has given him a rare reputation since …Top 15 Deadliest Animals in the World Ophiophagy – Examples of animals that eat snakes List of Fascinating Solitary Animals A diagram of a frogs heart. A look inside the heart of a Frog looking at key valves and parts …The circulatory system of a human compared to that of a frog is different due to the number of chambers each contains. A frog’s heart has three chambers (two atria, and a single ventricle), whereas a human’s has four (two atria, and two ventricles). The atrium of a frog receives deoxygenated blood from the blood vessels.Mar 3, 2004 · The slow contraction time of the frog's heart at room temperature (cold!) allows for faithful recording of the movements via a lever on the smoked drum and allows visual observations to aid interpretation. (Temperature was rarely specified, even when it was an experimental variable. Similar to the mammalian heart, the frog heart also beats sPontaneously and an rhythmically. The heartbeat of the frog d other cold-blooded animals arises from the sinus venosus, a structure that is equivalent to the sinoatrial node found in mammalian species. In other words, the cardiac pacemaker of the frog heart is located in the sinus venosus. ….

Results and conclusion: Adrenaline and calcium chloride increased the amplitude of contraction of isolated perfused frog heart. The L- type of Ca2+ channel ...temperature on the pulse rate and contraction of the heart. Both endogenous and exogenous substances can affect all aspects of cardiac behavior, altering heart rate, action potential shape, and strength and sequence of contraction. The animal preparation was the exposed, in situ heart of a pithed bullfrog. TheThe isolated frog heart. The evolution of the isolated heart model was a concerted effort beginning in 1866 with the publication of the isolated perfused frog heart preparation by Carl Ludwig and Elias Cyon at the Physiological Institute at the University of Leipzig (17, 77). At that time, the frog heart was considered ideal for experimentation ...Experimental Objectives. To observe and record atrial and ventricular behavior (systole and diastole) in the frog heart. To observe and record the cardiac phenomena of refraction, ventricular extrasystole, and the compensatory pause in the frog heart. To observe and record the effect of increasing and decreasing the temperature of cardiac ...THIS useful monograph contains a full and critical summary of recent work on the chemical processes in the frog's heart and their relation to muscular ...Vagusstoff (literally translated from German as "Vagus Substance") refers to the substance released by stimulation of the vagus nerve which causes a reduction in the heart rate. Discovered in 1921 by physiologist Otto Loewi, vagusstoff was the first confirmation of chemical synaptic transmission and the first neurotransmitter ever discovered.Dec 18, 2017 · Frog blood cells refer to the circulating cells in the frog blood. Though humans and other mammals are warm-blooded animals, fish, and amphibians such as frog, and reptiles are cold-blooded animals. This means they rely on external heat to heat up their blood. The heart of the frogs consists of three chambers: two atria and a single ventricle. The three-chambered frog heart mixes oxygenated and deoxygenated blood in the ventricle. Therefore, the body never receives fully oxygen-rich blood. In turtles, where a septum begins to form and separate the ventricles, the body receives slightly richer blood in oxygen. It is only in the warm-blooded model, in birds and mammals, that the two ...Explanation: Frog's heart has two accessory chambers, Sinus Venosus for receiving blood from body and Conus Arteriosus for sending the blood out from heart. Human heart does not possess such …The frog's heart stops beating, its kidneys stop functioning and its respiration ceases--for months. The frogs endure this suspended animation by producing a type of antifreeze made with glucose, keeping the water in their cells in a liquid state at temperatures below 32 degrees Fahrenheit (0 degrees Celsius). Frog heart, The heart of the bullfrog is quite large and red and should be slowly beating. Figure3 shows a the process of removing the ribs and sternum and the exposed heart below. If the frog is still cold, the rate may be very slow so run some Ringer's solution over the heart to …, The main anatomical difference between the frog heart and the human heart is that the frog heart has You correctly answered: a single, fused ventricle. 4. Predict Question 1: When you increase the frequency of the stimulation, what do you think will happen to the amplitude (height) of the ventricular systole wave? Your answer: The amplitude ..., 1. In pithed frogs, increase of temperature increases the rate of the heart as an asymptotic but not simply logarithmic curve until intermittence is reached. The form of this curve appears essentially similar for the American and European species; it is also essentially the same when the heart is empty, when it is stimulated by the distention of perfusion, and when it is further quickened by ... , Jul 7, 2012 · The isolated frog heart. The evolution of the isolated heart model was a concerted effort beginning in 1866 with the publication of the isolated perfused frog heart preparation by Carl Ludwig and Elias Cyon at the Physiological Institute at the University of Leipzig (17, 77). At that time, the frog heart was considered ideal for experimentation ... , Heart Piece #3: As a child, go to Lon Lon Ranch and enter the storage building at the back of the ranch. Pull the crates back to reach the far corner where you will find a hole you can crawl through. This leads to a little area with a Piece of Heart in a nest. Location: Gerudo Valley. Conditions: Reach Gerudo Valley., Figure 19.4.1 – Major Factors Influencing Cardiac Output: Cardiac output is influenced by heart rate and stroke volume, both of which are also variable. SVs are also used to calculate ejection fraction, which is the portion of the blood that is pumped or ejected from the heart with each contraction., The true beginning of the concept of a pacemaker began over 200 years ago. In the late 1700s, Luigi Galvani discovered that he could cause contraction of a frog heart simply by passing an electrical current through the heart. This concept was further realized nearly 100 years later with the first su …, Experimental Objectives. To observe and record atrial and ventricular behavior (systole and diastole) in the frog heart. To observe and record the cardiac phenomena of refraction, ventricular extrasystole, and the compensatory pause in the frog heart. To observe and record the effect of increasing and decreasing the temperature of cardiac ..., The slow contraction time of the frog's heart at room temperature (cold!) allows for faithful recording of the movements via a lever on the smoked drum and allows visual observations to aid interpretation. (Temperature was rarely specified, even when it was an experimental variable. However, lab temperature was evidently hardly different …, That he did most willingly, and he also kindly put his equipment at my disposal. Duly, we found that the potassium permeability of the sinus venosus of the tortoise and of the frog heart, as measured either by the rate of influx or efflux of 42 K, is greatly increased by ACh (10 −7 to 2 × 10 −6 g ml −1) (Harris & Hutter, 1956; Hutter, 1957)., The vagus nerve that served an isolated frog heart was stimulated and the contractile force of the heart was measured. Stimulation of the vagus nerve resulted in a slowed heart rate. When the solution surrounding the heart was removed and applied to a second separate frog heart, that second heart also showed a slowed heart rate., Frogs are fascinating little creatures who are full of surprises. Get ready to check out a collection of fun frog facts as we get to know one of the world’s most popular amphibians. Learn everything from how many species of frogs roam the p..., severe and prolonged vomiting and diarrhea. dehydration. muscle spasms and cramps. convulsions. jaundice. confusion. scarring. Kambo has also been linked to causing toxic hepatitis, organ failure ..., the frog heart is behaving rhythmically. There is a noticeable delay between atrial and ventricular contractions. This delay occurs by the AV node, which prevents both the atria and ventricles from contracting at the same time., Mar 3, 2004 · The slow contraction time of the frog's heart at room temperature (cold!) allows for faithful recording of the movements via a lever on the smoked drum and allows visual observations to aid interpretation. (Temperature was rarely specified, even when it was an experimental variable. , Which of the following is true of the cardiac action potential? The cardiac action potential is longer than the skeletal muscle action potential. The main anatomical difference between the frog heart and the human heart is that the frog heart has. a single, fused ventricle. The amplitude of the ventricular systole did not change with the more ..., The answer is E. Tremor is a common β2 effect. Blood vessels in the skin have almost exclusively α (vasoconstrictor) receptors. Stimulation of renin release is a β1 effect. Beta2 agonists cause hyperglycemia. The answer is D. Effect of drugs on frog’s heart - Download as a PDF or view online for free., Study with Quizlet and memorize flashcards containing terms like Delivering single shocks in succession to stimulate the frog heart _____., The doublet that results with more frequent stimulation of the frog heart represents _____., When the ventricles beat rapidly in succession, _____. and more., Experimental Objectives. To observe and record atrial and ventricular behavior (systole and diastole) in the frog heart. To observe and record the cardiac phenomena of refraction, ventricular extrasystole, and the compensatory pause in the frog heart. To observe and record the effect of increasing and decreasing the temperature of cardiac ..., Detailed Structure of Frog’s Heart External Structure of Heart. Externally heart looks like a triangular structure. It is reddish color. It is 3 chambered... Internal structure of heart of frog. The ventral view of …, Identify the heart. The heart has a triangular shape, and it's just above the liver. It's composed of left and right atriums on top and a single ventricle that runs along the bottom of the frog's heart. The conus arteriosus is the big vessel that comes out of the heart and pumps blood throughout the frog's body., Frog blood cells refer to the circulating cells in the frog blood. Though humans and other mammals are warm-blooded animals, fish, and amphibians such as frog, and reptiles are cold-blooded animals. This means they rely on external heat to heat up their blood. The heart of the frogs consists of three chambers: two atria and a single ventricle., The names given to the three arterial arches of frogs are those used in all land vertebrates, including mammals. They are the carotid (the third), systemic (the fourth), and pulmonary …, Heart. The frog’s heart is the small triangular organ at the top. Unlike a mammal heart, it only has three chambers — two atria at the top and one ventricle below. Carefully cut away the pericardium, the thin membrane surrounding the heart. Notice the arteries connected to the top of the heart, giving it a ‘Y’ shape. Liver. Just below ..., In order to carry out their daily activities, frogs depend upon three types of muscle; striated (skeletal), cardiac (heart), and smooth. Striated muscles are composed of elongated fibers and are used for actions such as hopping. As indicated by the name, the tissue exhibits striped or striated patterns when examined under a microscope., Sep 1, 2009 · Frogs have a three-chambered heart. It consists of two atria and one ventricle. As the right side of a frog's heart receives deoxygenated blood from the body, and the left side receives freshly oxygenated blood from the lungs, the two streams of blood mix together in the ventricle, sending out a concoction that is not fully oxygenated to the ... , Frog Heart Muscle Tissue. Frogs are tailless amphibians that belong to the order Anura. Species of frog may vary greatly in size, behavior, and habitat, but they all have something in common; the same kind of blood and the same type of heart that pumps it through their bodies. Unlike most mammalian species, frogs and other amphibians …, 1. Introduction. The eyes of frogs and toads (Anura) are among their most striking morphological characteristics. From the well-known red-eyed treefrog (Agalychnis callidryas, Hylidae), with its stunning red iris and vertical pupil, to the marine toad (Rhinella marina, Bufonidae) with its black iris with greenish flecks and a horizontal pupil, there is a …, The frog heart is the only organ contained within the coelom that has its own protective covering. This is the pericardium. There are two upper chambers of the heart, the right atrium and the left atrium. The frog heart, however, has only one lower chamber, a single ventricle., Frogs have a three-chambered heart. It consists of two atria and one ventricle. As the right side of a frog's heart receives deoxygenated blood from the body, and the left side receives freshly oxygenated blood from the lungs, the two streams of blood mix together in the ventricle, sending out a concoction that is not fully oxygenated to the ..., The isolated perfused mammalian heart preparation was established in 1897 by Oscar Langendorff. The method was developed on the basis of the isolated perfused frog heart established by Elias Cyon at the Carl Ludwig Institute of Physiology in Leipzig, Germany in 1866. Observations made using both methods at the end of the 19th and at the ... , Lab 3 - Frog Heart. major anatomical differences between frog heart and human heart. Click the card to flip 👆. - frog heart has only 3 chambers: two atria and one ventricle, human heart has 2 of each. - the frog heart pacemakers are found in the sinus venosus, instead of SA and AV nodes like in human heart. Click the card to flip 👆., How frog lungs work. Once the frogs have developed legs and lungs and can leave the water, they breathe on land using frog lungs. The lungs themselves work in a very similar way to human lungs. The tissue is expandable, and when the frog breathes in the air, the oxygen is filtered into the bloodstream. The carbon dioxide from the bloodstream is ...