Question

In frogs, the number of pairs of cranial nerves arising from the brain are _______.

• A. 12
• B. 6
• C. 9
• D. 10

Hint:

Remember comparative anatomy: Humans = 12 pairs cranial nerves Frog = 10 pairs cranial nerves

Answer 1

The Correct Option is D

Concept: Cranial nerves are nerves that arise directly from the brain. They control sensory functions, movement and coordination of different body parts. Different vertebrates possess different numbers of cranial nerve pairs. Humans possess twelve pairs, while frogs possess ten pairs. Knowledge of comparative anatomy helps answer this question.

Step 1: Understand cranial nerves.
Cranial nerves originate directly from brain tissue. They carry impulses for sensation and motor control. These nerves help regulate vision, smell, hearing, swallowing and muscular movement.

Step 2: Compare frog and human anatomy.
Human beings possess \[ 12 \] pairs of cranial nerves. Frogs possess fewer cranial nerves compared with mammals. Standard zoological classification shows frogs possess \[ 10 \] pairs.

Step 3: Check options carefully.
12 → human value 6 → incorrect 9 → incorrect 10 → correct frog value

Step 4: Final conclusion.
Since frog anatomy includes ten cranial nerve pairs, correct answer becomes \[ \boxed{10} \] Therefore \[ \boxed{\text{Option (4)}} \]