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. This definition is taken from the National Library of Medicine's MeSH (Medical Subject Headings) 2026 release, which is the standard vocabulary used to index PubMed and most medical literature.

Yes. Acrosome is also referred to as Acrosomes in different clinical, research and patient-facing contexts. The MeSH descriptor groups all of these synonyms under a single canonical concept so research and records stay consistent.

Acrosome falls under the broader medical category "Anatomy" in the MeSH hierarchy (tree numbers: A05.360.490.890.820.100, A11.284.430.214.190.875.190.550.040, A11.497.760.400.100). Browsing the related concepts on this page takes you to neighbouring topics in the same branch of medicine.

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