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What cranial nerve is responsible for muscles of facial expression?
Wiki User
∙ 13y ago
Facial nerve, the seventh cranial nerve. It leaves the brain along with eighths cranial nerve through internal acoustic meatus and comes out through stylomastoid foramen to supply the muscles of facial expression.
Wiki User
∙ 9y ago
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What is the nerve supply of the muscles of facial expression?
The facial muscles are innervated by facial nerve (cranial nerve VII). In contrast, the nearby masticatory muscles are innervated by the mandibular nerve, a branch of thetrigeminal nerve (V).
What is cranial nerve 7?
Cranial nerve 7 is also referred to as the facial nerve. It has both sensory and motor components. Its sensory portion is responsible for taste on the anterior two thirds of the tongue as well as sensation for a small patch of skin by the ear. Its motor component is responsible for innervating the muscles of facial expression.
What facial expression muscles are used in a surprise expression?
Facial muscles are usually employed to display surprise.
What cranial nerve serves muscles covering the facial skeleton?
Facial Nerve (VII)
What muscles are mimetic muscles?
They are facial muscles innervated by the facial nerve that, among other things, control facial expression.
How many nerves to make a smile?
All muscles of facial expression are supplied by seventh cranial nerve. That is Facial nerve. This nerve carries the taste sensation from anterior two third of the tongue also.
What is the eighth cranial nerve?
Cranial nerve 7 is also referred to as the facial nerve. It has both sensory and motor components. Its sensory portion is responsible for taste on the anterior two thirds of the tongue as well as sensation for a small patch of skin by the ear. Its motor component is responsible for innervating the muscles of facial expression.
How many are the muscles of facial expression?
3
Facial nerve?
The facial nerve, also known as the seventh cranial nerve (CN VII), is an important nerve in the human body responsible for controlling various facial muscles. The facial nerve is essential for facial expression, the sense of taste, and certain functions related to hearing and balance. Here is a detailed overview of the facial nerve, its functions, anatomy, and related conditions: Functions of the facial nerve: Engine function: The main function of the facial nerve is to control facial expression muscles. It stimulates the muscles that allow us to smile, frown, close our eyes, move our lips, and make many other facial movements. Taste sensation: The facial nerve carries taste information from the anterior two-thirds of the tongue, including the taste buds for sweet, salty, sour, and bitter tastes. Salivary glands: The facial nerve also innervates the submandibular and sublingual salivary glands, which are responsible for the production and digestion of saliva. Tear glands and nasal glands: It controls the lacrimal (tear) and nasal glands, contributing to tearing and the production of nasal secretions.
What symptoms may occur when an acoustic neuroma presses on the surrounding cranial nerves?
Compression of the fifth cranial nerve can result in facial pain and or numbness. Compression of the seventh cranial nerve can cause spasms, weakness or paralysis of the facial muscles
Which cranial nerve is involved in the secretion of saliva?
CN VII (facial) The cranial nerves that regulate salivation are CN VII (facial) and CN IX (Glossopharyngeal). The cranial nerves that transmit the special sense of taste are CN VII (facial, to the anterior 2/3rd of the tongue) and CN X (vagus, to the posterior 1/3rd of the tongue). Of these nerves, only CN VII (facial) transmits both taste and salivation control.
What part of the nervous system is affected by the bell's palsy?
The Facial Nerve or Cranial Nerve VII is the nerve involved with Bell's Palsy.
