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How many atria and ventricles in a reptile heart?
In most reptiles there are 2 atriums and 1 ventricle, it also has 3 heart chambers
What is the difference between a mammal and a reptile heart?
One key difference is that mammal hearts have four chambers (two atria and two ventricles) while reptile hearts typically have three chambers (two atria and one ventricle). Mammals have a double circulatory system (systemic and pulmonary circulation) while reptiles have a single circulatory system.
Where is the pig heart located?
The pig's heart is located in the thoracic cavity. The thoracic cavity is divided into he pericardial cavity and two pleural cavities which house the lungs.
What is the difference between the frog and human circulatory system?
The human heart about as big as your fist. The frog's heart is the size of a dime. They are both very similar other than that the frog has 3 chambers and the human has 4. The blood in the the left atrium has deoxygenated blood and the right has oxygenated blood. They both enter the ventricle which keeps them mostly separate while the blood drains into the arteries for transport around the body
How many chambers does each type of vertebrae have in there heart?
The heart of fish have two chambers. The heart of reptiles and amphibians have three chambers. The heart of mammals have four chambers.
What difference atria and ventricles fetal pig?
the difference between the ventricles and the atria is that the ventricles are thicker
What makes the valves between atriums open and close?
There are no valves between the atria. The valves between the atria and ventricles close when the ventricles contract.
What are the functions of the atria and the ventricles of the heart?
Atria is the receiving chamber and it is located at the top while ventricles are the one responsible for pumping blood out of the heart either to oxygenate the blood or to deliver it into our systems and it is located at the bottom part of the heart
When atria relax ventricles do what?
When relaxed, the atria expand, and then the ventricles contract.
What two components of the conduction system constitute the only electrical link between the atria and the ventricles?
The atrioventricular node and the bundle of HIS are the electrical conduction link between the atria and the ventricles.
Do atria contract before the ventricles?
Yes, atria contracts before the ventricles.
When the valves between atria and ventricles closed what sound is produced?
When the Aalves close between the Ventricles and the Artery what sounfd does it make.
What is the junction between atria and ventricles called?
Annulus fibrosus cordis
What are the valves between the atria and the ventricles called?
Atrio-ventricular valves
Cardiac cycle when do you hear the first heart sound snd second?
when the ventricles closes and between the atria and the ventricles.
What is difference between auricle and ventricle?
uricles are part of the atria and serve to increase the volume of the atria. The atria that they are a part of serve to direct blood into the ventricles and are not very muscular. The ventricles are far more muscular than the atria and serve to pump blood to either the lungs or the rest of the body ( the right and left ventricles respectively).
Which valves lie between the atria and ventricles and prevent bloof from flowing back into the atria when the venttricals contract?
semilunar valves
