What structures are innervated by CN X?

Overview

• Sensory: Innervates the skin of the external acoustic meatus and the internal surfaces of the laryngopharynx and larynx.
• Special Sensory: Provides taste sensation to the epiglottis and root of the tongue.
• Motor: Provides motor innervation to the majority of the muscles of the pharynx, soft palate and larynx.

What are the branches of the cranial nerves?

There are many branches, which transmit a combination of sensory, motor and parasympathetic fibres. The other cranial nerves are the vestibulocochlear, the glossopharyngeal, the vagus, spinal accessory and hypoglossal nerves. They are all discussed in great detail in their respective articles.

Is vagus nerve sympathetic or parasympathetic?

The vagus nerve (VN) is the longest nerve of the organism and a major component of the parasympathetic nervous system which constitutes the autonomic nervous system (ANS), with the sympathetic nervous system.

What cranial nerve that has three major branches?

The trigeminal nerve is the largest of the cranial nerves. Its name, trigeminal, means three twins. It is derived from the fact that each nerve, one on each side of the pons, has three major branches: the ophthalmic nerve (V1 in the illustration below), the maxillary nerve (V2), and the mandibular nerve (V3).

What are the major cranial nerves?

Most typically, humans are considered to have twelve pairs of cranial nerves (I–XII), with the terminal nerve (0) more recently canonized. They are: the olfactory nerve (I), the optic nerve (II), oculomotor nerve (III), trochlear nerve (IV), trigeminal nerve (V), abducens nerve (VI), facial nerve (VII),…

What are the functions of the cranial nerves?

Cranial nerves are responsible for the control of a number of functions in the body. Some of these functions include directing sense and motor impulses, equilibrium control, eye movement and vision, hearing, respiration, swallowing, smelling, facial sensation, and tasting.

What are the cranial nerves which emerge from the brainstem?

The cranial nerves III-XII emerge from the brainstem. These cranial nerves supply the face, head, and viscera. (The first two pairs of cranial nerves arise from the cerebrum). The brainstem has integrative functions being involved in cardiovascular system control, respiratory control, pain sensitivity control, alertness, awareness, and consciousness.