Nerve, first cranial

The first cranial nerve is the olfactory nerve, the nerve that carries impulses for the sense of smell from the nose to the brain. 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 word "olfactory" comes from the Latin "olfactare", to sniff at and "olfacere", to smell.

Medical dictionary. 2011.

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  • First cranial nerve — The first cranial nerve is the olfactory nerve, the nerve that carries impulses for the sense of smell from the nose to the brain. The cranial nerves emerge from or enter the skull (the cranium), as opposed to the spinal nerves which emerge from… …   Medical dictionary

  • Cranial nerve, first — 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 first cranial nerve is the olfactory nerve which carries impulses for… …   Medical dictionary

  • first cranial nerve — noun a collective term for numerous olfactory filaments in the nasal mucosa • Syn: ↑olfactory nerve, ↑nervii olfactorii • Hypernyms: ↑cranial nerve • Part Holonyms: ↑sensory system * * * noun …   Useful english dictionary

  • cranial nerve first — nervus olfactorius …   Medical dictionary

  • Cranial nerve — Nerve: Cranial nerves Inferior view of the brain and brain stem showing cranial nerves. An unlabelled version is here Latin nervus cranialis (plural: nervi cranial …   Wikipedia

  • Cranial nerves — are nerves that emerge directly from the brain stem in contrast to spinal nerves which emerge from segments of the spinal cord. Although thirteen cranial nerves in humans fit this description, twelve are conventionally recognized. The nerves from …   Wikipedia

  • Cranial nerve zero — Latin nervus terminalis Code TA A14.2.01.002 The terminal nerve, or cranial nerve zero, was discovered by German scientist Gustav Fritsch in 1878 in the brains of sharks. It was first found in humans in 1913 …   Wikipedia

  • 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 I — 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 first cranial nerve is the olfactory nerve which carries impulses for… …   Medical dictionary

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