The pacemaker of the heart is the:
Show answer and explanation
Correct answer: Sinoatrial node
The sinoatrial node generates spontaneous electrical impulses. It sets the normal heart rhythm.
Keep practicing
More Exercise Effects on Heart questions
- The P wave of an electrocardiogram represents:
- Which factor primarily determines diastolic blood pressure?
- Mean arterial pressure is best approximated by:
- Which vessel has the highest blood pressure?
- Pulse pressure is defined as the difference between:
- The primary site of exchange of gases and nutrients is the: