Home
Class 12
BIOLOGY
Assertion: SA node malfunctioning leads ...

Assertion: SA node malfunctioning leads to disturbance of Heart rat
Reason: SA node is the pacemaker of heart producing electric impulse for heart contraction

A

If both assertion and reason are true and reason is the correct explanation of assertion.

B

If both assertion and reason are true but reason is not the correct explanation of assertion.

C

If assertion is true but reason is false.

D

If both assertion and reason are false.

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Similar Questions

Explore conceptually related problems

Most suitable reason why SA node act as pacemaker for heart.

Why is the S-A node called pace-maker of the heart ?

Why is sinuatrial (SA) node also called the pacemaker of heart?

Sino-atrial node is called the pacemaker of our heart. Why?

Why is the SA node called pacemaker of the heart ? Write its full from.

SA node acts as a pacemaker of the heart because of the fact that it

Assertion : Though AV node generates impulses, it is still not called as the pacemaker of heart. Reason : The rythmicity of impulse production is not highest in AV node in the neuromuscular conduction pathway.

Assertion : The AV node is also called as the pacemaker of the heart. Reasoning : It is because of the fact that the AV node determines the rate of heartbeat.