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Choose the correct statement about SA node

I. Located at lateral wall of the right atrium

II. Herat of heart

III. It initiates the rhythmic contractile activity of the heart and maintains it

IV. It is called pace keeper of the heart

V. It is called pace maker of the heart

The option with correct statements is

a)

All except III

b)

All except IV

c)

All except V

d)

None of these



Question ID - 3602 | SaraNextGen Top Answer

Choose the correct statement about SA node

I. Located at lateral wall of the right atrium

II. Herat of heart

III. It initiates the rhythmic contractile activity of the heart and maintains it

IV. It is called pace keeper of the heart

V. It is called pace maker of the heart

The option with correct statements is

a)

All except III

b)

All except IV

c)

All except V

d)

None of these

1 Answer
127 votes
Answer Key / Explanation : (b) -

(b)

SA node is called the pacemaker of the heart (not pace keeper) because it is the site at, which the initiation of the contraction originates

127 votes


127