EVERYDAY SCIENCE

SCIENCE

CIRCULATORY SYSTEM

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
It is needed to keep us alive. It brings oxygen and nutrients to all the parts of the body so they can keep working.
A
blood
B
water
C
air
D
None of the above
Explanation: 

Detailed explanation-1: -Blood brings oxygen and nutrients to all the parts of the body so they can keep working. Blood carries carbon dioxide and other waste materials to the lungs, kidneys, and digestive system to be removed from the body.

Detailed explanation-2: -One of the most important functions of blood is the transportation of oxygen and nutrients to all tissues of the body. Arteries, arterioles and capillaries deliver oxygen, nutrients, hormones and proteins to all tissues of the body.

Detailed explanation-3: -The cells need oxygen for metabolism, which creates carbon dioxide as a waste product. 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.

Detailed explanation-4: -The circulatory system delivers oxygen and nutrients to cells and takes away wastes. The heart pumps oxygenated and deoxygenated blood on different sides. The types of blood vessels include arteries, capillaries and veins.

There is 1 question to complete.