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Draw a coronal cross-section of a heart, labeling all chambers, valves, and blood vessels that contribute to the functioning of the heart. Draw arrows denoting blood flow throughout the heart. Briefly describe how the heart beats (and the electrical conductance system that controls heart beats)

Question

Draw a coronal cross-section of a heart, labeling all chambers, valves, and blood vessels that contribute to the functioning of the heart. Draw arrows denoting blood flow throughout the heart. Briefly describe how the heart beats (and the electrical conductance system that controls heart beats)

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Step 1

The heart is a muscular organ that pumps blood throughout the body by means of the circulatory system. Blood supplies essential nutrients and oxygenated blood to the body and also assist to remove deoxygenated blood and other metabolic wastes.

Step 2

Coronal cross-section of a heart

Chambers:

The human heart is composed of four chambers, namely two upper chambers (atria) and two lower chambers (ventricles). The right atrium is responsible for receiving oxygen-poor blood and pumps it to the right ventricle. Subsequently, the oxygen-poor blood is pumped to the lungs by the right ventricle. Moreover, the left atrium is responsible for receiving the oxygenated blood from the lungs and thereby pumps it to the left ventricle, which in turn pumps the oxygen-rich blood all over the body.

Superior
(from upper body)
vena cava
Aorta
Pulmonary artery
(to left lung)
Pulmonary artery
(to right lung)
Pulmonary veins
(from left lung)
Right artrium
Left artrium
Pulmonary veins
(from right lung)
Mitral valve
Aortic valve
Tricuspid valve
Left ventricle
Pulmonic valve-
Right ventricle
Aorta
Inferior vena cava
(to lower body)
(from lower body)
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Image Transcriptionclose

Superior (from upper body) vena cava Aorta Pulmonary artery (to left lung) Pulmonary artery (to right lung) Pulmonary veins (from left lung) Right artrium Left artrium Pulmonary veins (from right lung) Mitral valve Aortic valve Tricuspid valve Left ventricle Pulmonic valve- Right ventricle Aorta Inferior vena cava (to lower body) (from lower body)

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Step 3

Valves:

The human heart has four valves, namely tricuspid valve, mitral valve, aortic valve, and pulmonic valve.

Tricuspid valve: It lies between the right atrium and right ventricle.

Mitral valve: It is situated between the left atrium and left ventricle.

Aortic valve: It is situated between the left ventricle and aorta.

Pulmonic (pulmonary) valve: It is situated between the right ventricle and pulmonary artery.

The heart valves play an important role in preventing the backward flow...

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Biology

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