Question

Verlie
E. Name them.
1. It protects the heart
2. The rhythmic movement of the heart
3. This cells present in the blood protect the body
from infections
4. The largest artery in the human body
5. A special structure that prevents the
backward flow of blood​

Answer 1

Explanation:

1. The pericardium is a thin sac that surrounds your heart. It protects and lubricates your heart and keeps it in place within your chest. Problems can occur when the pericardium becomes enflamed or fills with fluid.

2. Rhythmic movements of the heart (upper trace) cause synchronous movement of the bookhmg lamellae (lower trace). ... This should stir the blood in the bookhmg sinus and cause some inspiratory and expiratory movement of air through the spiracle and atrium.

3. White blood cells are also called leukocytes. They protect you against illness and disease. Think of white blood cells as your immunity cells.

4. Aorta Anatomy

The aorta is the large artery that carries oxygen-rich blood from the left ventricle of the heart to other parts of the body

5. heart valves

What are heart valves? The heart has 4 chambers, 2 upper chambers (atria) and 2 lower chambers (ventricles). Blood passes through a valve before leaving each chamber of the heart. The valves prevent the backward flow of blood.

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