What are the chambers of the heart and their descriptions?

Answer 1

The heart has 4 chambers. The lower 2 are called ventricles and have thicker muscular walls than the upper 2 called the atria. The septum which divides the hearts two sides is made mostly of muscle.The atria receive blood from all parts of the body;the ventricles pump blood into circulation.

As well as having the 4 chambers it also has 4 valves to control blood flow. They have the same structure but differ in certain details.The 2 atrioventricular valves lie between the atria and ventricles. The mitral valve on the left side has 2 cusps (bicuspid) while the right side counterpart has 3 cusps (tricuspid). Two semilunar vales are the exits from the ventricles, the pulmonary valve between the right ventricle and pulmonary artery and the aortic valve between the left ventricle and the aorta.

Answer 2

Most mammalian hearts are structured similarly to the human heart. There are 4 chambers found within the mammalian heart: the left atrium, right atrium, left ventricle, and right ventricle. The mammalian heart is unique because it is the only type of heart in which deoxygenated and oxygenated blood are separated through double circulation.

The path of blood through the chambers ensures that oxygenated and deoxygenated blood never mix. This ensures the most energy efficient means to delivering oxygen to the cells of the body. Deoxygenated blood from the body enters the heart through the inferior and superior vena cava into the right atrium. From the right atrium, the blood passes through the tricuspid valve and into the right ventricle. The right ventricle then pumps blood through the pulmonic valve into the pulmonary arteries, which direct the blood to the lungs, where it is oxygenated.

Oxygenated blood enters the left atrium from the pulmonary veins,and passes through the bicuspid (mitral) valve to the left ventricle. The left ventricle pumps the oxygenated blood through the aortic valve to the aorta, through which arteries and capillaries branch off to deliver oxygen to the body's cells. The blood becomes deoxygenated in the capillaries, and veins carry the blood back to the right atrium.

It is safe to assume that, in the mammalian heart, the right atrium and ventricle carry deoxygenated blood, whereas the left atrium and ventricle carry oxygenated blood.

Answer 3

There are 4 chambers in the heart. They are the right atrium, right ventricle, left atrium and left ventricle. The atria are located on top of the ventricles.