What is the name of CN XII?

Cranial Nerve XII is known as the Hypoglossal Nerve. This nerve plays a critical role in motor function, particularly in the movement of the tongue. It innervates most of the intrinsic and extrinsic muscles of the tongue, which are essential for actions such as speech, swallowing, and manipulating food during mastication.

Understanding the significance of the hypoglossal nerve highlights its role in various functions. For example, any injury or dysfunction affecting this nerve can lead to difficulties with speech articulation and swallowing, reflecting its importance in daily activities.

The other names provided in the options do not correspond to cranial nerve XII. The Accessory Nerve, for instance, refers to cranial nerve XI, which primarily controls the sternocleidomastoid and trapezius muscles. Thus, the specific terminology and designation as "Hypoglossal Nerve" are critical for accurate communication regarding cranial nerve functions in both clinical practice and academic discourse.