Mean diameter of inferior alveolar nerve is:

 # Mean diameter of inferior alveolar nerve is:

A. 10 mm

B. 4.7 mm

C. 8 mm

D. 1.7 mm

The correct answer is B. 4.7 mm.

The inferior alveolar nerve is a branch of the mandibular nerve (the third division of the trigeminal nerve), responsible for providing sensory innervation to the lower teeth, chin, and lower lip. Its diameter is significant in clinical practices like dental anesthesia, nerve preservation during surgeries, and implant placement.

• The mean diameter of 4.7 mm reflects the nerve's size as it travels through the mandibular canal.

Inferior Alveolar – exits the mental foramen as the mental nerve and continues as the incisive nerve.

● The nerve to mylohyoid is a motor and sensory branch of the inferior alveolar nerve

● The nerve to anterior belly of the digastric muscle is a motor branch of the inferior alveolar nerve