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Urethra feminina

TA Code Latin term English term
A08.4.01.001
Urethra feminina ♀
Female urethra ♀
↓ A08.3.01.028
Ostium urethrae internum ♀
Internal urethral orifice; Internal urinary meatus ♀
A09.2.03.001
Ostium urethrae internum accipiens
Filling internal urethral orifice
A09.2.03.002
Ostium urethrae internum evacuans
Voiding internal urethral orifice
A09.2.03.003
Pars intramuralis
Intramural part
A09.2.03.004
Crista urethralis
Urethral crest
A09.2.03.005
Ostium urethrae externum
External urethral orifice
↓ A09.2.03.006
M. sphincter urethrae externus ♀
External urethral sphincter ♀
A09.2.03.007
Tunica muscularis
Muscular layer; Muscular coat
A09.2.03.008
Stratum circulare
Circular layer
↓ A09.2.03.009
M. sphincter urethrae internus
Internal urethral sphincter
A09.2.03.010
Stratum longitudinale
Longitudinal layer
A09.2.03.011
Tunica spongiosa
Spongy layer
A09.2.03.012
Tunica mucosa
Mucosa; Mucous membrane
A09.2.03.013
Glandulae urethrales
Urethral glands
A09.2.03.014
Lacunae urethrales
Urethral lacunae
A09.2.03.015
(Ductus paraurethrales)
(Para-urethral ducts)
Entries: 17 Notes: 4 Date: 28.01.2013
TA98 footnote TA98 correction note TA98 RAT note TA98 redirection note
A08.3.01.028 Ostium urethrae internum In the published book (Thieme 1998), one entry, listed under urethra masculina in chapter 09 had a reference TA code (A08.3.01.028) that did not appear in the expected position in chapter 08. The missing entity in chapter 08, which has been restored, was the ostium internae of the urethra feminina, the female homologue of the ostium internae of the urethra masculina. Because both entities have the same name in Terminologia Anatomica, gender symbols were added to distinguish between the two entities.
A08.3.01.028 Ostium urethrae internum This term describes the opening of the urethra from the bladder. However, superimposed lateral cystograms and voiding cystourethrograms show that the ostium in the bladder that is filling differs from the ostium in the bladder that is voiding. The bladder around the ostium urethrae accipiens usually forms a flat disc or baseplate, the pars intramuralis urethrae (bladder neck) is closed and the urethra is at its longest. With the onset of voiding the baseplate becomes progressively funnel-shaped and the bladder neck opens and becomes incorporated into the funnel so that the bladder appears to descend and the urethra to shorten. The ostium urethrae internum evacuans then lies some 20% closer to the ostium urethrae externum in the female, and at the basis prostatae in the male.
A09.2.03.006 M. sphincter urethrae externus The two entries for this entity were made identical by using the female gender symbol in both entries.
A09.2.03.009 M. sphincter urethrae internus The Latin precursor sphincter urethrae internus was corrected by restoring the missing noun musculus.

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