Question

Match List-I with List-II
List-I (Nerve block)
(A). Pudendal
(B). Paravertebral lumbar
(C). Auriculopalpebral
(D). Tibial
List-II (Used mainly for intervention of this organ)
(I). Penis
(II). Rumen
(III). Eye
(IV). Leg and pes
Choose the correct answer:

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

Hint:

Remember that the Auriculopalpebral block is purely motor (prevents blinking/squeezing of eyelids), while the Pudendal block is essential for bovine penile anesthesia.

Answer 1

The Correct Option is A

Step 1: Understanding the Concept:
Local and regional anesthesia techniques (nerve blocks) are widely used in veterinary clinical practice to facilitate surgical interventions, examinations, or pain management in specific organs or regions.

Step 2: Detailed Explanation:
Let us analyze the matches:
- (A) Pudendal nerve block: The pudendal nerve provides motor and sensory innervation to the penis, prepuce, and retractor penis muscle in bulls. Blocking this nerve causes relaxation and protrusion of the penis, allowing for examination, desensitization, or surgical repair of the penis (I).
- (B) Paravertebral lumbar nerve block: This block involves anesthetizing the dorsal and ventral branches of the last thoracic (T13) and first two lumbar (L1, L2) spinal nerves. It desensitizes the entire flank wall, which is the primary site for performing a laparotomy (such as a rumenotomy to access the rumen (II) in cattle).
- (C) Auriculopalpebral nerve block: This is a motor branch of the facial nerve (CN VII). Anesthetizing this nerve prevents motor function of the eyelids (eyelid akinesia) without causing sensory loss. It is used to prevent blinking during examinations or procedures on the eye (III).
- (D) Tibial nerve block: This block is performed in the distal limb to provide regional anesthesia to the plantar aspect of the leg and pes (IV), facilitating lameness examinations or digit surgeries.
Matching these pairs gives: (A)-(I), (B)-(II), (C)-(III), (D)-(IV).

Step 3: Final Answer:
The correct matching sequence is represented by option (A).