Question

Statement I: The parasympathetic nervous system increases the peristaltic movements of the gut. Statement II: The egestion of faeces to the outside through anal opening is an involuntary process.

• A. Statement I and Statement II are correct
• B. Statement I and Statement II are incorrect
• C. Statement I is correct, but Statement II is incorrect
• D. Statement I is incorrect, but Statement II is correct

Hint:

Parasympathetic = "Rest and Digest"; Egestion = Voluntary control of the external sphincter.

Answer 1

The Correct Option is C

Step 1: Read both statements.
Statement I links the parasympathetic nerves to gut movement. Statement II says passing out faeces is involuntary. We test each one.

Step 2: Recall the autonomic nerves.
The parasympathetic system is the "rest and digest" part of the nervous system. It boosts digestion when the body is calm.

Step 3: Judge statement I.
Parasympathetic stimulation speeds up peristalsis, the wave-like squeezing that pushes food along the gut. So statement I is correct.

Step 4: Understand egestion.
Egestion is the removal of faeces through the anus. The rectum has an internal sphincter that opens by reflex, but there is also an external sphincter.

Step 5: Judge statement II.
The external anal sphincter is under our conscious control. So the final act of passing faeces is voluntary, not involuntary. Statement II is wrong.

Step 6: Pick the option.
Statement I is correct and statement II is incorrect, which is the third option.
\[ \boxed{\text{Statement I is correct, but Statement II is incorrect}} \]