Question

Name four chambers of the human heart. State one function of each chamber in a tabular form.

Answer 1

The heart is a fist-sized muscular organ positioned just above and just left of the breastbone. In the network of arteries and nerves, called the cardiovascular system, the heart pumps blood.

Complete answer:
In humans, other animals, and birds, the heart is broken into four chambers: the upper left and right atrium, and the lower left and right ventricles. In general, the right atrium and the ventricle are referred to as the right heart, and their left counterpart is the left heart. Fish, by contrast, have two galleries, an atrium and a ventricle, while there are three reptile chambers. Because of cardiac valves to prevent backflow, blood flows through the heart of a healthy heart in one direction. The nucleus is surrounded by a protective sac, the pericardium, which also involves a small amount of blood. Three layers are made up of the heart wall: the epicardium, the endocardium, and the myocardium.

Chambers of heart	Function
Right atrium	Deoxygenated blood is derived from superior and inferior vena cava, the deoxygenated blood then is pumped into the right ventricle.
Left atrium	Oxygenated blood is received from the left and right pulmonary veins from the lung and pumps this blood through the bicuspid valve to the left ventricle.
Right ventricle	Deoxygenated blood is collected from the right atrium and transferred into the pulmonary arteries into the lung.
Left ventricle	Oxygenated blood is collected from the left atrium and injected into the aorta. Blood circulates through the body from the aorta.

Note: The sac that covers the heart is the pericardium. The pericardium's sturdy outer shell is called the fibrous membrane. This is lined with a double inner membrane called the serous membrane that lubricates the surface of the heart by producing pericardial fluid.