Frog or the vertebrates have myogenic heart (auto excitable). In this heart, beat is originated by a group of muscle fibres which is situated in the wall of the heart. So wave of contraction is generated inside the heart.
Frog's heart when taken out of the body continues to beat for sometime. Select the best option from the following statements: (i) Frog is a…
NEET UG 2017 — Zoology Structural Organisation in Animals
2017mcqhard
Frog's heart when taken out of the body continues to beat for sometime.
Select the best option from the following statements:
(i) Frog is a poikilothermic
(ii) Frog does not have any coronary circulation
(iii) Heart is "myogenic" in nature
(iv) Heart is autoexcitable
Official previous-year question
Held on 30 Apr 2017 · Verified 9 Jul 2026.
Options
- A
Only (iii)
- B
Only (iv)
- C
(i) and (ii)
- D
(iii) and (iv)
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