Anatomy

Pyramidal Tracts

Fibers that arise from cells within the cerebral cortex, pass through the medullary pyramid, and descend in the spinal cord. Many authorities say the pyramidal tracts include both the corticospinal and corticobulbar tracts.

National Library of MedicineMedical Subject Headings2026

Structured Summary

Abstract

Fibers that arise from cells within the cerebral cortex, pass through the medullary pyramid, and descend in the spinal cord. Many authorities say the pyramidal tracts include both the corticospinal and corticobulbar tracts.

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Classification

Broader headings

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MeSH Record

Synonyms

13 entry terms
  • Pyramidal Tract
  • Tract, Pyramidal
  • Tracts, Pyramidal
  • Corticobulbar Tracts
  • Corticospinal Tracts
  • Decussation, Pyramidal
  • Corticobulbar Tract
  • Corticospinal Tract
  • Pyramidal Decussation
  • Tract, Corticobulbar
  • Tract, Corticospinal
  • Tracts, Corticobulbar
  • Tracts, Corticospinal

MeSH Record

Aspects Covered

22 allowable subheadings

Indexed with the subheadings abnormalities, anatomy & histology, blood supply, chemistry, cytology, diagnostic imaging, drug effects, embryology, enzymology, growth & development, immunology, injuries, metabolism, microbiology, parasitology, pathology, physiology, physiopathology, radiation effects, surgery, ultrastructure, virology.

MeSH Hierarchy

Tree Numbers

  1. A08w.186w.854w.300w
  2. A08w.612w.380.730w

MeSH Record

NLM Classification

WL 400

AMA Style

References

  1. National Library of Medicine. Pyramidal Tracts. Medical Subject Headings (MeSH). 2026. Unique ID D011712. http://id.nlm.nih.gov/mesh/2026/D011712
  2. Pyramidal Tracts. In: Wikipedia. https://en.wikipedia.org/wiki/Pyramidal_tracts
  3. Pyramidal Tracts. In: Wikidata. https://www.wikidata.org/wiki/Q968731