Valves

Q.

The bicuspid valve is also called as ___

Q. What is the special feature present in a human heart which does not allow mixing of blood when oxygen-rich and carbon dioxide-rich blood reach the heart?
[2 marks]
[NCERT Exemplar Q8]
[Heart]

Q.

Does blood flow increase during physical activities?

Q. Cardiac muscles are involuntary muscles.

1. True
2. False

Q.

The bicuspid valve is also called as ___

Q. The bicuspid valve is the inflow valve for the right ventricle.

1. False
2. True

Q.

Lub-dub sound is due to

1. the rhythmic movement of blood

2. the movement of lungs

3. the contraction of heart alone

4. the valves opening and closing

Q.

_______ are present in the heart to prevent backflow of blood within the chambers.

1. Arteries

2. Veins

3. Valves

4. Capillaries

Q. Arteries transport oxygenated blood from the heart to the lungs.

1. True
2. False

Q.

Lub-dub sound is due to

1. the movement of lungs

2. the contraction of heart alone

3. the valves opening and closing

4. the rhythmic movement of blood

Q. What is the function of the septum situated within the heart?

Q. The bicuspid valve is the inflow valve for the right ventricle.

1. True
2. False