Question

Match List-I with List-II: 

List-I (Foramen)	List-II (Bone in which it is present)
(A) Hypoglossal	(I) Occipital
(B) Infraorbital	(II) Sphenoid
(C) Supraorbital	(III) Frontal
(D) Orbitorotundum	(IV) Maxilla

Choose the correct answer from the options given below:

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

Hint:

To remember cranial foramina locations:
- Supraorbital $\rightarrow$ Above the orbit, located in the Frontal bone.
- Infraorbital $\rightarrow$ Below the orbit, located in the Maxilla.
- Hypoglossal $\rightarrow$ Near the brainstem exit, located in the Occipital bone.

Answer 1

The Correct Option is B

Step 1: Understanding the Concept:
The skull of domestic animals contains numerous foramina (openings) that allow cranial nerves and blood vessels to pass through.
Identifying which bones house these specific foramina is essential for understanding cranial osteology.

Step 2: Detailed Explanation:
Let us match each foramen with its corresponding bone:
- (A) Hypoglossal foramen (or canal): This canal transmits the hypoglossal nerve (CN XII) and is located in the basilar part of the occipital bone (I) near the condyles. Thus, (A) matches with (I).
- (B) Infraorbital foramen: This is the anterior opening of the infraorbital canal, transmitting the infraorbital nerve and vessels. It is located in the maxilla bone (IV). Thus, (B) matches with (IV).
- (C) Supraorbital foramen: This opening transmits the supraorbital nerve and vessels and is located in the frontal bone (III) near the roof of the orbit. Thus, (C) matches with (III).
- (D) Foramen orbitorotundum: This is a large, combined opening characteristic of ruminants, formed by the fusion of the orbital fissure and the foramen rotundum. It is located in the sphenoid bone (II). Thus, (D) matches with (II).
This matching sequence gives: (A) - (I), (B) - (IV), (C) - (III), (D) - (II).

Step 3: Final Answer:
The correct match is (A) - (I), (B) - (IV), (C) - (III), (D) - (II). This corresponds to option (B).