II. Anatomy
- Transitional Epithelium (Urothelium)
- Lines the lower urinary tract (Bladder and proximal Urethra) as well as the upper tract (ureters and Kidneys)
- Distal Urethra is instead lined by stratified squamous epithelium
- Barrier to urinary tract toxins
- Multilayer cuboid Cell Structure allows the epithelium to expand and contract
- Disrupted by Trauma, infection, inflammation or obstruction
- Lines the lower urinary tract (Bladder and proximal Urethra) as well as the upper tract (ureters and Kidneys)
- Lamina propria (submucosa)
- Muscularis Propria (Detrusor Muscle)
- Bladder Smooth Muscle comprises the outer layer
- Images
Lewis (1918) Gray's Anatomy 20th ed (in public domain at Yahoo or BartleBy)
Lewis (1918) Gray's Anatomy 20th ed (in public domain at Yahoo or BartleBy)
III. Associated Conditions
IV. Procedures
Images: Related links to external sites (from Bing)
Related Studies
Definition (FMA) | Organ with organ cavity which connects the cavity of the urinary bladder to the exterior. Examples: There is only one urethra. |
Definition (UWDA) | Organ with organ cavity which connects the cavity of the urinary bladder to the exterior. Examples: There is only one urethra. |
Definition (NCI_NCI-GLOSS) | The tube through which urine leaves the body. It empties urine from the bladder. |
Definition (NCI) | The tube carrying urine from the bladder to outside of the body. |
Definition (NCI_CDISC) | The tube carrying urine from the bladder to outside of the body. (NCI) |
Definition (CSP) | membranous canal conveying urine from the bladder to the exterior of the body. |
Definition (MSH) | A tube that transports URINE from the URINARY BLADDER to the outside of the body in both the sexes. It also has a reproductive function in the male by providing a passage for SPERM. |
Concepts | Body Part, Organ, or Organ Component (T023) |
MSH | D014521 |
SnomedCT | 13648007, 264255005 |
HL7 | URTH |
LNC | LP30364-1, MTHU001321 |
English | Urethra, Urethras, urethr(o)-, urethral structure, urethro, urethra, urethral, urethras, URETHRA, Urethral, Urethral structure, Urethral (qualifier value), Urethral structure (body structure), Urethra, NOS |
Swedish | Urinrör |
Czech | uretra, močová trubice |
Finnish | Virtsaputki |
Russian | URETRA, MOCHEISPUSKATEL'NYI KANAL, МОЧЕИСПУСКАТЕЛЬНЫЙ КАНАЛ, УРЕТРА |
Croatian | URETRA |
Latvian | Uretra |
Polish | Cewka moczowa |
Norwegian | Urinrør, Uretra |
Spanish | estructura uretral (estructura corporal), estructura uretral, uretral (calificador), uretral, uretra, Uretra |
French | Urètre |
German | Urethra, Harnröhre |
Italian | Uretra |
Dutch | Urethra, Urinebuis |
Portuguese | Uretra |
Ontology: Male urethral structure (C0458452)
Definition (NCI) | The 8 inch long tube carrying urine from the bladder to the outside of the body exiting at the end of the penis. |
Concepts | Body Part, Organ, or Organ Component (T023) |
SnomedCT | 82841003 |
English | Urethra masculina, urethra male, male urethra, Male urethra, Male urethral structure (body structure), Male urethral structure, Male Urethra |
Spanish | estructura de la uretra masculina (estructura corporal), estructura de la uretra masculina, uretra masculina |