MCQ – 73799

Question

A guinea pig is dissected and a portion of its intestine is fixed in the modified Dales chamber to study the effects of some drugs on intestinal contractility. A substance X was infused in the broth following which the graph comes out as depicted. Substance X most closely resembles which of these substances?

A.

Epinephrine

B.

Acetylcholine

C.

KC1

D.

BaCl2

Show Answer

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