Which of the following is the normal arrangement of lingual nerve and vessels in the tongue from medial to lateral
**Core Concept**
The lingual nerve and vessels in the tongue have a specific arrangement to ensure proper innervation and blood supply. This arrangement is crucial for the preservation of sensory and motor functions of the tongue.
**Why the Correct Answer is Right**
The correct arrangement of the lingual nerve and vessels is as follows: the lingual artery, lingual vein, and sublingual artery (from medial to lateral) are accompanied by the lingual nerve. This arrangement allows for the proper distribution of blood vessels and nerve fibers to the tongue, enabling the transmission of sensory information and ensuring adequate oxygenation of the tongue tissue. The lingual nerve, a branch of the mandibular division of the trigeminal nerve (cranial nerve V3), provides sensory innervation to the anterior two-thirds of the tongue.
**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect because the correct arrangement starts with the lingual artery.
**Option B:** This option is incorrect because the sublingual vein is not typically mentioned in the same context as the lingual nerve and vessels.
**Option C:** This option is incorrect because it incorrectly places the lingual vein before the lingual artery.
**Option D:** This option is incorrect because it does not mention the lingual nerve.
**Clinical Pearl / High-Yield Fact**
The lingual nerve and vessels run from medial to lateral in the tongue, and knowledge of this arrangement is crucial for surgical procedures such as lingual nerve repair or lingual artery ligation.
**Correct Answer:** C. Lingual artery, lingual vein, sublingual artery, lingual nerve