Nerve, seventh cranial
The seventh cranial nerve is the facial nerve, a mixed nerve that has fibers both going out and coming in (both efferent and afferent fibers). It supplies the muscles of facial expression. Paralysis of the facial nerve causes a characteristic picture with drooping of one side of the face, inability to wrinkle the forehead, inability to whistle, inability to close the eye and deviation of the mouth toward the other side of the face. Paralysis of the facial nerve is called Bell's palsy.

Medical dictionary. 2011.

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  • Seventh cranial nerve — The seventh cranial nerve is the facial nerve, a mixed nerve that has fibers both going out and coming in (both efferent and afferent fibers). It supplies the muscles of facial expression. Paralysis of the facial nerve causes a characteristic… …   Medical dictionary

  • Cranial nerve, seventh — The seventh cranial nerve is the facial nerve, a mixed nerve that has fibers both going out and coming in (both efferent and afferent fibers). It supplies the muscles of facial expression. Paralysis of the facial nerve causes a characteristic… …   Medical dictionary

  • seventh cranial nerve — noun cranial nerve that supplies facial muscles • Syn: ↑facial, ↑facial nerve, ↑nervus facialis • Derivationally related forms: ↑facial (for: ↑facial) • Hypernyms …   Useful english dictionary

  • Seventh cranial nerve paralysis — Known as Bell’s palsy, this is paralysis of the facial nerve, the nerve that supplies the facial muscles on one side of the face. The cause of Bell’s palsy is not known, but it is thought to be related to a virus (or to various viruses). Bell’s… …   Medical dictionary

  • cranial nerve seventh — nervus facialis …   Medical dictionary

  • Nerve — A bundle of fibers that uses electrical and chemical signals to transmit sensory and motor information from one body part to another. See nervous system. * * * A whitish cordlike structure composed of one or more bundles (fascicles) of myelinated …   Medical dictionary

  • cranial nerve — noun any of the 12 paired nerves that originate in the brain stem • Hypernyms: ↑nerve, ↑nervus • Hyponyms: ↑olfactory nerve, ↑nervii olfactorii, ↑first cranial nerve, ↑optic nerve, ↑ …   Useful english dictionary

  • Cranial nerve VII — The cranial nerves emerge from or enter the skull (the cranium), as opposed to the spinal nerves which emerge from the vertebral column. There are twelve cranial nerves. The facial nerve is the seventh cranial nerve. The facial nerve supplies the …   Medical dictionary

  • Nerve, facial — The facial nerve is the seventh cranial nerve. It is a mixed nerve that has fibers both going out and coming in (both efferent and afferent fibers). It supplies the muscles of facial expression. Paralysis of the facial nerve causes a… …   Medical dictionary

  • seventh nerve — noun see seventh cranial nerve …   Useful english dictionary

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