Question

Q:1Know the circulatory system carries oxygen to body cell and why it is important?

Q:2 know the 3 main types of blood vessels and their function ?

Answer 1

1. The circulatory system is designed to circulate oxygen and nutrients absorbed from the food to various parts of the body through blood circulation as well as removal of wastes. This is important for the survival of the cells of an organ that implicates the proper functioning of the whole body.

2. The different blood vessels are arteries, veins, and capillaries.

Arteries carry the oxygenated blood from the heart to various body parts. They divide like a tree wherein blood is collected from the left ventricle of the heart. The only exception is pulmonary artery from heart and lungs.

Capillaries are the smallest arteries through which only one cell can be traveled at once.

Veins carry the deoxygenated blood and are only one way to prevent reverse direction of blood flow. The only exception is pulmonary veins from lungs to heart.