Circulatory system of frog

All Parts of Circulatory and how is it works.

1. Frog’s Circulatory System

2. WHAT IS CIRCULATORY SYSTEM???

3. A Frog's Heart Is Central to Its Circulation It has two atria and a single ventricle, making it have a total of three chambers. Here's how it works. Deoxygenated blood is sent to the atrium from various organs in the frog's body through blood vessels and veins. This is the blood being drained from organs, thus starting the cleansing process. Oxygenated blood then comes from the lungs and the skin, and enters the left atrium. (This also serves as a gas exchange in most amphibians.) Both atria dump their blood into the single ventricle. The ventricle is divided into two narrowly separated chambers, which cleverly reduces the mixing of oxygenated and deoxygenated blood together. The ventricle contracts, sending oxygenated blood to the brain from the left ventricle. It reaches the head by flowing through the carotid arteries. This is an almost pure blood that reaches the brain.

4. The skin and lungs receive nearly pure blood from the right atrium through pulmocutaneous arteries. From the skin and lungs, fresh oxygen can be picked up. The blood that passes through the aortic arches is very mixed up , but still has a lot of oxygen in it. There is enough to supply the rest of the body what it needs. Interesting note : Both the gas exchange organs and the interior tissues of the body get their blood under full pressure.

5. The Circulatory system of a frog consists of the heart, blood vessels, and blood. Frogs have a closed double loop circulatory system. A closed circulatory system means that the frog’s blood is contained with in blood vessels and the heart. The double loop system means that the blood goes back to the heart two times before the blood goes through the whole system of the frog’s body. There are three chambers consisting of one ventricle and two atria. The ventricle pumps blood through a single artery (truncus arteriosus) witch distributes blood thought the body. Oxygenated blood coming back to the heart from lungs enters the heart into different atria than the de-oxygenated blood does coming from the body capillaries. How Does it pump???

6. The valve helps to keep blood from only mixing as minimally as possible. The valve directs the oxygenated blood to the aorta, which will leave heart and go to the body capillaries and the deoxygenated blood out the pulmonary vein and to the lungs. Oxygenated and non-oxygenated bloods still mix, because Frogs lack a septum that would separate blood. The Frog's circulatory system works is because frogs do not need as much oxygen rich blood in their body because they are getting oxygen from two sources, their lungs, and through their skin. Both oxygen and carbon dioxide are able to transfer through the skin of frogs. Another reason why their three chambered heart works for frogs is because frogs are ectoderm's which means the maintain their body temperature externally and this requires a lot less oxygen.

7. HEART PUMPS..