Anatomy

Acrosome

The cap-like structure covering the anterior portion of SPERM HEAD. Acrosome, derived from LYSOSOMES, is a membrane-bound organelle that contains the required hydrolytic and proteolytic enzymes necessary for sperm penetration of the egg in FERTILIZATION.

National Library of MedicineMedical Subject Headings2026

Structured Summary

Abstract

The cap-like structure covering the anterior portion of SPERM HEAD. Acrosome, derived from LYSOSOMES, is a membrane-bound organelle that contains the required hydrolytic and proteolytic enzymes necessary for sperm penetration of the egg in FERTILIZATION.

MeSH Record

Classification

Broader headings

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See Also

MeSH Record

Synonyms

1 entry terms
  • Acrosomes

MeSH Record

Aspects Covered

14 allowable subheadings

Indexed with the subheadings chemistry, classification, drug effects, enzymology, immunology, metabolism, microbiology, parasitology, pathology, physiology, radiation effects, transplantation, ultrastructure, virology.

MeSH Record

History Note

91(75); was see under SPERMATOZOA 1975-90

MeSH Hierarchy

Tree Numbers

  1. A05w.360w.490w.890w.820.100w
  2. A11w.284w.430w.214w.190.875w.190.550w.040w
  3. A11w.497w.760w.400.100w

MeSH Record

NLM Classification

WP 95

AMA Style

References

  1. National Library of Medicine. Acrosome. Medical Subject Headings (MeSH). 2026. Unique ID D000177. http://id.nlm.nih.gov/mesh/2026/D000177
  2. Acrosome. In: Wikipedia. https://en.wikipedia.org/wiki/Acrosome
  3. Acrosome. In: Wikidata. https://www.wikidata.org/wiki/Q421111