MCQ
In higher vertebrates, $SA-$node helps in
- AConduction of blood
- ✓Initiation of heart beat
- COpening of tricuspid valve
- DOpening of bicuspid valve
✓
Answer
Correct option: B.
Initiation of heart beat
b
Sinu-auricular Node ($SA-$node) or pacemaker is found in right auricle of heart. This initiates heart beat
Sinu-auricular Node ($SA-$node) or pacemaker is found in right auricle of heart. This initiates heart beat
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