What is the sensory function of the facial nerve?
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What is the sensory function of the facial nerve?
The facial nerve performs these motor (movement) and sensory functions: Controls the muscles that make your facial expressions. Controls muscle in your inner ear that moderates loudness of sound. Helps make tears.
What is the distribution of the facial nerve?
The nerve typically travels from the pons through the facial canal in the temporal bone and exits the skull at the stylomastoid foramen. It arises from the brainstem from an area posterior to the cranial nerve VI (abducens nerve) and anterior to cranial nerve VIII (vestibulocochlear nerve).
Does facial nerve have a sensory component?
The facial nerve carries both motor and sensory fibers. Motor axons innervate the muscles of facial expression and the stapedius muscle.
What is the sensory branch of facial nerve?
Facial nerve
| Type | Mixed nerve (motor, sensory, autonomic fibers) |
|---|---|
| Origin | Pons of the brainstem |
| Intracranial branches | Greater petrosal nerve, communicating branch with otic ganglion, nerve to stapedius, chorda tympani |
What type of sensory information is carried by the trigeminal V nerve?
As stated previously, the trigeminal nerve provides both sensory and motor innervation to the face. More specifically, the sensory information conducted by this nerve includes touch, pain, and temperature.
Which cranial nerve is sensory?
Cranial nerves I, II, and VIII are pure sensory nerves. Cranial nerves III, IV, VI, XI, and XII are pure motor nerves. Cranial nerves V, VII, IX, and X are mixed sensory and motor nerves.
Which cranial nerve is associated with sensory information of most of the face assists in innervating the muscles of mastication and is divided into three divisions?
As the largest of the cranial nerves, the trigeminal nerve is responsible for the primary sensory input from the head and neck as well as providing motor innervation to the muscles of mastication.
How many sensory nerves are there?
There are 12 of them, each named for its function or structure. Their functions are usually categorized as being either sensory or motor. Sensory nerves are involved with your senses, such as smell, hearing, and touch.
What are the sensory branches of the trigeminal nerve?
The different branches are namely the ophthalmic (V1), maxillary (V2), and mandibular (V3) nerves. The ophthalmic nerve is responsible for sensory innervation of the face and skull above the palpebral fissure as well as the eye and portions of the nasal cavity.
Which cranial nerve is exclusively sensory?
There are twelve pairs of cranial nerves out of which the olfactory (cranial nerve I) and the optic nerve (cranial nerve II) are considered as the nerves that perform sensory function exclusively.
Which cranial nerve is both sensory and motor?
The longest cranial nerve is the vagus nerve. Your vagus nerve has both sensory and motor functions. It runs through many parts of your body, including your tongue, throat, heart and digestive system.
