Read the following statements and select the correct option.
Statement 1: Deglutition starts as a reflex and then continues by voluntary action.
Statement 2: Oesophagus has smooth muscles in the beginning and striated muscles in the rest of its wall.
Both statements are correct
Statement 1 is correct but statement 2 is incorrect
Statement 1 is incorrect but statement 2 is correct
Both the statements are incorrect
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.
Since the actual swallowing begins as an involuntary reflex.
Statement 1 is incorrect.
The oesophagus wall is composed of striated muscle in the upper part, smooth muscle in the lower part, and a mixture of the two in the middle.
Hence, statement 2 is incorrect.
Hence, the correct is (d).