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urethra

File:Female_and_Male_Urethra.jpg · Wikimedia Commons · See Wikimedia Commons

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The urethra (: urethras or urethrae) is the tube that transports urine from the bladder to the urethral meatus of the penis or vulva in placental mammals. In males, it also transports semen through the penis during ejaculation.

AI overview

The urethra is a tube that carries urine from your bladder out of your body through the penis or vulva. In males, this same tube also carries semen during ejaculation.

AI-generated from the Wikipedia summary — may contain errors.

Key facts

Anatomy.Name
Urethra
Anatomy.Latin
urethra feminina (female); urethra masculina (male)
Anatomy.Greek
οὐρήθρα
Anatomy.Image
Female and Male Urethra.jpg
Anatomy.Caption
The urethra transports urine from the bladder to the outside of the body. This image shows (a) a human female urethra and (b) a human male urethra.
Anatomy.Width
220
Anatomy.Precursor
Urogenital sinus
Anatomy.Artery
Inferior vesical arteryMiddle rectal arteryInternal pudendal artery
Anatomy.Vein
Inferior vesical veinMiddle rectal veinInternal pudendal vein
Anatomy.Nerve
Pudendal nervePelvic splanchnic nervesInferior hypogastric plexus
Anatomy.Lymph
Internal iliac lymph nodesDeep inguinal lymph nodes

via Wikipedia infobox

Research

39,666 papers

via PubMed

Wikidata facts

Image
Female and Male Urethra.jpg
Show 2 more facts
Commons category
Urethra
NCI Thesaurus ID
C12417
Sources (8)

via Wikidata · CC0

~13 min read

Article

19 sections
Contents
  • Structure
  • Male
  • Female
  • Microanatomy
  • Blood and nerve supply and lymphatics
  • Development
  • Function
  • Urination
  • Ejaculation
  • Clinical significance
  • Injury
  • Other
  • Catheterisation
  • Other animals
  • History
  • Additional images
  • See also
  • References
  • External links

The urethra (: urethras or urethrae) is the tube that transports urine from the bladder to the urethral meatus of the penis or vulva in placental mammals. In males, it also transports semen through the penis during ejaculation.

The external urethral sphincter is a striated muscle that allows voluntary control over urination. The internal sphincter, formed by the involuntary smooth muscles lining the bladder neck and urethra, is innervated by the sympathetic division of the autonomic nervous system in males and females.

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