Anatomy

Penis

The external reproductive organ of males. It is composed of a mass of erectile tissue enclosed in three cylindrical fibrous compartments. Two of the three compartments, the corpus cavernosa, are placed side-by-side along the upper part of the organ. The third compartment below, the corpus spongiosum, houses the urethra.

National Library of MedicineMedical Subject Headings2026

Structured Summary

Abstract

The external reproductive organ of males. It is composed of a mass of erectile tissue enclosed in three cylindrical fibrous compartments. Two of the three compartments, the corpus cavernosa, are placed side-by-side along the upper part of the organ. The third compartment below, the corpus spongiosum, houses the urethra.

MeSH Record

Classification

Broader headings

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MeSH Record

Synonyms

2 entry terms
  • Glans Penis
  • Penis, Glans

MeSH Record

Aspects Covered

23 allowable subheadings

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

MeSH Record

Indexing Annotation

inflammation = BALANITIS; penile fracture: index under PENIS /inj (IM) + RUPTURE (NIM)

MeSH Hierarchy

Tree Number

  1. A05w.360w.444w.492w

MeSH Record

NLM Classification

WP 950

AMA Style

References

  1. National Library of Medicine. Penis. Medical Subject Headings (MeSH). 2026. Unique ID D010413. http://id.nlm.nih.gov/mesh/2026/D010413
  2. Penis. In: Wikipedia. https://en.wikipedia.org/wiki/Human_penis
  3. Penis. In: Wikidata. https://www.wikidata.org/wiki/Q8124