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Terminal nerve complex

L S Demski1

  • 1New College of the University of South Florida, Division of Natural Sciences, Sarasota 34243-2197.

Acta Anatomica
|January 1, 1993
PubMed
Summary
This summary is machine-generated.

The terminal nerve (TN) is a cranial nerve found in most vertebrates, connecting the forebrain to nasal structures. Its sensory, vascular, and reproductive functions are still being explored.

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Area of Science:

  • Neuroscience
  • Comparative Anatomy
  • Developmental Biology

Background:

  • The terminal nerve (nervus terminalis: TN) is a poorly understood cranial nerve.
  • It originates from olfactory placodes and links anterior forebrain to nasal and olfactory structures.
  • The TN is present in most vertebrates, excluding hagfish.

Observation:

  • Phylogenetic variations in TN components are detailed.
  • The TN's precise functions remain largely unidentified.
  • Evidence suggests sensory (non-chemosensory), vascular, and glandular roles in the nose.

Findings:

  • The TN contains peptide-fibers implicated in reproductive development and behavior.
  • It may influence other neural functions beyond its direct sensory roles.

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  • The paper reviews TN history, recent studies, and proposes future research directions.

    • Implications:

    • Understanding the TN's multifaceted roles is crucial for advancing neuroscience.
    • Further research can elucidate its contribution to sensory processing and neuroendocrinology.
    • The TN represents a key area for future investigation in vertebrate neurobiology.