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Central facial palsy (colloquially referred to as central seven) is a symptom or finding characterized by paralysis or paresis of the lower half of one side of the face. It usually results from damage to upper motor neurons of the facial nerve . The facial motor nucleus has dorsal and ventral divisions that contain lower motor neurons supplying ...
The facial nerve, also known as the seventh cranial nerve, cranial nerve VII, or simply CN VII, is a cranial nerve that emerges from the pons of the brainstem, controls the muscles of facial expression, and functions in the conveyance of taste sensations from the anterior two-thirds of the tongue. [1] [2] The nerve typically travels from the ...
Most recover completely [1] Frequency. 1–4 per 10,000 per year [2] Bell's palsy is a type of facial paralysis that results in a temporary inability to control the facial muscles on the affected side of the face. [1] In most cases, the weakness is temporary and significantly improves over weeks. [4] Symptoms can vary from mild to severe. [1]
Facial nerve paralysis is a common problem that involves the paralysis of any structures innervated by the facial nerve. The pathway of the facial nerve is long and relatively convoluted, so there are a number of causes that may result in facial nerve paralysis. [ 2] The most common is Bell's palsy, [ 3][ 4] a disease of unknown cause that may ...
Sixth nerve palsy, or abducens nerve palsy, is a disorder associated with dysfunction of cranial nerveVI (the abducens nerve), which is responsible for causing contraction of the lateral rectus muscleto abduct(i.e., turn out) the eye.[1] The inability of an eye to turn outward, results in a convergent strabismusor esotropiaof which the primary ...
v. t. e. The abducens nerve or abducent nerve, also known as the sixth cranial nerve, cranial nerve VI, or simply CN VI, is a cranial nerve in humans and various other animals that controls the movement of the lateral rectus muscle, one of the extraocular muscles responsible for outward gaze. It is a somatic efferent nerve .
Plan of the facial and intermediate nerves and their communication with other nerves. ("Nucleus of Facial N." labeled at upper left.) The facial motor nucleus is a collection of neurons in the brainstem that belong to the facial nerve ( cranial nerve VII). [1] These lower motor neurons innervate the muscles of facial expression and the stapedius.
Alternating hemiplegia (also known as crossed hemiplegia) is a form of hemiplegia that has an ipsilateral cranial nerve palsies and contralateral hemiplegia or hemiparesis of extremities of the body. The disorder is characterized by recurrent episodes of paralysis on one side of the body. [1] There are multiple forms of alternating hemiplegia ...