1.

Read the following statements and select the correct option. Statement 1: Deglutition starts as a reflex and tehn continues by voluntary action. Statement 2: Oesophagus has smooth muscles in the beginning and striated muscles in the rest of its wall.A. Both statements 1 and 2 are correct.B. Statement 1 is correct but statement 2 is incorrect.C. Statement 1 is incorrect but statement 2 is correct.D. Both statements 1 and 2 are incorrect.

Answer» Correct Answer - D
Deglutition (swallowing ) starts as a voluntary action in the mouth and then continues as an involuntary action. Striated muscle surrounds the upper one third of the oesophagus and smooth muscle surrounds the lower two thirds.


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