MICROANATOMY

BLOOD CARDIOVASCULAR SYSTEM LYMPHOID ORGANS

CARDIOVASCULAR SYSTEM

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
True or False:Blood that has delivered Oxygen and nutrients to body cells picks up Carbon Dioxide and wastes for removal from the body by the lungs when we exhale.
A
False
B
True
C
Fasle
D
Ture
Explanation: 

Detailed explanation-1: -The blood travels from the main artery to larger and smaller arteries and into the capillary network. There the blood drops off oxygen, nutrients and other important substances and picks up carbon dioxide and waste products.

Detailed explanation-2: -Red blood cells then travel within veins back to the right side of the heart. From the heart the blood is pumped back to the lungs where the carbon dioxide is released from the blood into the air sacs to be breathed out. Air is breathed in, oxygen is picked up by the blood and the journey begins again.

Detailed explanation-3: -The heart, blood and blood vessels work together to service the cells of the body. Using the network of arteries, veins and capillaries, blood carries carbon dioxide to the lungs (for exhalation) and picks up oxygen. From the small intestine, the blood gathers food nutrients and delivers them to every cell.

Detailed explanation-4: -At each body part, a network of tiny blood vessels called capillaries connects the very small artery branches to very small veins. The capillaries have very thin walls, and through them, nutrients and oxygen are delivered to the cells. Waste products are brought into the capillaries.

Detailed explanation-5: -The carbon dioxide is absorbed from the cells by the blood plasma (some of it binds to hemoglobin too) and is transported back to the lungs in the bloodstream. There it leaves the body when we breathe out. Red blood cells can also pick up or release hydrogen and nitrogen.

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