Transport and Circulation

What is the most important involuntary muscle?

Which artery among the given options carries deoxygenated blood?

Aorta is a blood vessel that carries the blood towards the heart.

Valve present between the right ventricle and pulmonary artery is called mitral valve.

What is the function of capillaries?

Arrows A, B, C and D show the flow of blood in the human body.

Name the organ Y.

Give a one-word answer.

The blood vessels that carry blood from the heart to different parts of the body.        

The thinnest blood vessels in the human body are

In which blood vessels does exchange of gases oxygen and carbon dioxide occur?

Arteries carry oxygen-rich blood away from the heart.   

Blood flows through blood vessels in our body.   

Arteries carry blood, rich in oxygen, away from the heart.

'A' is a red blood cell flowing in the artery of a person. Which of the following statements will be correct? 

Why does oxygenated blood return to the heart from the lungs?

Name the following.
(First letter of the answer has been given as the clue.)
The smallest blood vessels. C

Name the following.
The blood vessels that carry blood to the heart. (artery/ vein capillary)
 

Explain blood circulation with the help of a diagram.

Define blood capillaries.

Guess, who am I?

The smallest blood vessel. 

The smallest blood vessels are called the aorta.