Question

Match List-I with List-II. 

List-I	List-II
(A) Cranial Nerve V	(I) Facial nerve
(B) Cranial Nerve VII	(II) Vagus nerve
(C) Cranial Nerve IX	(III) Trigeminal nerve
(D) Cranial Nerve X	(IV) Glossopharyngeal nerve

Choose the correct answer from the options given below:

• (A) - (III), (B) - (IV), (C) - (I), (D) - (II)
• (A) - (III), (B) - (I), (C) - (IV), (D) - (II)
• (A) - (I), (B) - (II), (C) - (IV), (D) - (III)
• (A) - (III), (B) - (IV), (C) - (II), (D) - (I)

Hint:

Using standard Roman numeral designations, Cranial Nerve V is the Trigeminal nerve, and Cranial Nerve X is the Vagus nerve. Identifying these two matches can help you find the correct option quickly.

Answer 1

The Correct Option is B

Step 1: Understanding the Concept:
Fish, like other vertebrates, possess cranial nerves that arise from the brain to innervate various structures of the head and body.

Step 2: Detailed Explanation:
The standard numbering and naming of cranial nerves in vertebrates are:
- Cranial Nerve V (Trigeminal nerve): This is a mixed nerve that innervates the jaws and skin of the face. (A) matches with (III).
- Cranial Nerve VII (Facial nerve): This nerve innervates facial muscles, taste buds, and parts of the lateral line system in fishes. (B) matches with (I).
- Cranial Nerve IX (Glossopharyngeal nerve): This nerve innervates the tongue, pharynx, and first gill pouch in fishes. (C) matches with (IV).
- Cranial Nerve X (Vagus nerve): This nerve innervates the remaining gill arches, lateral line, heart, and digestive system. (D) matches with (II).
This matching corresponds to (A) - (III), (B) - (I), (C) - (IV), (D) - (II).

Step 3: Final Answer:
The matching is represented by Option B.