Describe the stucture of the heart?

Answer 1

The heart is about the size on a person's fist. It is made up of specialised cardiac muscle and is known as 'double pump' because each side of the heart works separately, the right side of the heart pumps blood from your heart to your lungs through the pulmonary artery. The left side of your heart pumps blood to other parts of your body through the aorta. The heart has four chambers a right atrium and ventricle and a left atrium and ventricle it also has special valves that make sure the blood is always pumped in the right direction. The muscle of the heart is specialised because it needs to be strong enough to beat everyday for a life time .The heart also has its own pacemaker, which sends electrical impulses to make sure the heart maintains a regular heart beat. The heart is made up of cardiac muscles.it has 4 chambers which separated by a partition called septum. The upper 2 chamber called atria and lower 2 are called ventricles. The left atrium is connected to left ventricles through a valve. The roght atrium is connected to the right ventricle through another valve. These valves prevent the backflow of of blood into atria when the ventricles contract to pump out the blood of the heart to the rest of the body. Ventricles have to pump blood into various organs with high pressure , so they have thicker walls than atria. The atries , veins and capillaries are a kind of thin pipes through which blood flows in the body . Through pulmonary veins oxygen reaches blood comes to left atrium from the lungs and then transferred in the left ventricle. Left ventricle contract and blood is pumped out to the whole body . Deoxygenated blood comes to right atrium from the whole body then it comes in the right ventricles and sent to the lungs by pulmonary artery.

Answer 2

The heart is a fist sized organ slightly to the left in the chest cavity. It consists of 4 chambers the right and left atrium and the right and left ventricle. The heart contains 4 valves (tricuspid, 2x semi lunar valves and the bicuspid) the heart has papillary muscles and tendonous cords which prevent the valves from inverting.

Answer 3

The basic structure of the heart is very simple. The heart has four chambers, two in the left, two in the right. The two sides of the heart are separated by a thick wall of Cardiac muscle, called the septum. the two chambers at each side are separated in the middle, into the Atria, at the top of the heart, and the Ventricles, at the bottom of the heart. the left Atrium and Ventricle are separated by the Bicuspid valve, and the right by the Tricuspid valve, both of which stop the blood from flowing back into the wrong chamber. Blood coming into the heart from the body is de-oxygenated, and comes in to the right Atrium through the Vena Cava, the main vein going into the heart, before being pumped into the right ventricle. It then goes away from the heart, through the semi-lunar valve, travels through the Pulmonary Artery, into the lungs, where gas exchange takes place, and the blood becomes oxygenized. It goes back through the Pulmonary Vein, into the left Atrium, through to the left ventricle, and out of the heart, through the Aorta. this all happens within five seconds.

Answer 4

The heart has four chambers inside it. The upper two chambers of heart are called atria (singular atrium), and the lower two chambers of heart are called ventricles. Two atria receive blood from the two main veins. And the two transport blood to the entire body and the lungs. The left atrium is connected to the left ventricle through a valve V1 Similarly, the right atrium is connected to the right ventricle through valve V2.

Answer 5

A heart's basic structures are as follow: Left and right ventricles Left and right Atriums Mitral valve Tricuspid valve Pulmonary Semilunar valve Aortic Semilunar valve

Answer 6

the heart is made up of cardiovascular muscles

Answer 7

The primary structures of the heart are the four chambers which divide it. The four are the right and left ventricles as well as the right and left atria.

Answer 8

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