Question

Describe the cirulatory system with respect to the following:
1. Blood vessels bringing blood to the heart and source.
2. Presence of valves and location.
3. Course of blood circulation through the heart chambers and parts of THE BODY

Answer 1

Explanation:

1) As the heart beats, it pumps blood through a system of blood vessels, called the circulatory system. The vessels are elastic tubes that carry blood to every part of the body. Blood is essential.

2) The mitral valve and tricuspid valve are located between the atria (upper heart chambers) and the ventricles (lower heart chambers). The aortic valve and pulmonic valve are located between the ventricles and the major blood vessels leaving the heart.

3) The heart consists of four chambers in which blood flows. Blood enters the right atrium and passes through the right ventricle. The right ventricle pumps the blood to the lungs where it becomes oxygenated. The oxygenated blood is brought back to the heart by the pulmonary veins which enter the left atrium.

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