The human male urethra laid open on its anterior (upper) surface.
Details
Precursor
Urogenital sinus[1]
Identifiers
Latin
pars spongiosa urethrae masculinae, pars cavernosa urethrae masculinae
TA98
A09.4.02.021
TA2
3682, 3455
FMA
19675
Anatomical terminology
[edit on Wikidata]
The spongy urethra (cavernous portion of urethra, penile urethra) is the longest part of the male urethra, and is contained in the corpus spongiosum of the penis.
It is about 15 cm long, and extends from the termination of the membranous portion to the external urethral orifice.
Commencing below the inferior fascia of the urogenital diaphragm it passes forward and upward to the front of the pubic symphysis; and then, in the flaccid condition of the penis, it bends downward and forward.
It is narrow, and of uniform size in the body of the penis, measuring about 6 mm in diameter; it is dilated behind, within the bulb, and again anteriorly within the glans penis, where it forms the fossa navicularis urethrae.
The spongy urethra runs along the length of the penis on its ventral (underneath) surface. It is about 15–16 cm in length, and travels through the corpus spongiosum. The ducts from the urethral gland (gland of Littré) enter here. The openings of the bulbourethral glands are also found here.[2] Some textbooks will subdivide the spongy urethra into two parts, the bulbous and pendulous urethra. The urethral lumen (interior) runs effectively parallel to the penis, except at the narrowest point, the external urethral meatus, where it is vertical. This produces a spiral stream of urine and has the effect of cleaning the external urethral meatus.[citation needed] The lack of an equivalent mechanism in the female urethra partly explains why urinary tract infections occur so much more frequently in females.[citation needed]
^Kulkarni, Neeta V (2015). Clinical Anatomy: A Problem Solving Approach. Jaypee Brothers Medical Publishers Pvt. Limited. p. 653. ISBN 978-9-35152-966-8.
The spongyurethra (cavernous portion of urethra, penile urethra) is the longest part of the male urethra, and is contained in the corpus spongiosum of...
urethra (pl.: urethras or urethrae) is the tube that connects the mammalian urinary bladder to the urinary meatus. In placental mammals, the urethra transports...
perineal space and subperitoneal spaces via the genital hiatus. The spongyurethra is most likely to be injured with a catheter or in a straddle injury...
navicular fossa is a short dilated portion of (the spongy (or cavernous or penile) portion of) the male urethra within the glans penis just proximal to the external...
genital tubercle – the urogenital sinus closes completely to form the spongyurethra and the labioscrotal swellings unite to form the scrotum. The secretion...
pelvic floor muscles. The urethra, which is the last part of the urinary tract, traverses the corpus spongiosum (spongyurethra), and its opening, known...
that the exposed surface area of the glans penis and access to the spongyurethra for sounding creates heightened physical pleasure. Repair of a meatotomy...
arteries Fascia of penis|Fascia Suspensory ligament Urinary meatus Spongyurethra Navicular fossa Scrotum Dartos fascia Perineum Perineal body Subcutaneous...
region of erectile tissue along the bottom of the penis, which contains the urethra and forms the glans penis. In some circumstances, release of nitric oxide...
images are taken at 30 to 45 degrees to visualise the entire spongyurethra (penile urethra). If there is no contraindication to full urinary catheterisation...
Cavernous portion can refer to: Cavernous part of internal carotid artery Spongyurethra (also known as "cavernous portion") This disambiguation page lists articles...
surrounds the urethra. The urethral sponge is composed of erectile tissue; during arousal, it becomes swollen with blood, compressing the urethra, helping...
Crura of clitoris and bulbs of vestibule Bartholin's glands (female) Spongyurethra contained in the corpus spongiosum (male) Median sagittal section of...
urethra enters the penis at the superior aspect of the anterior part of the bulb (most of the bulb is thus situated inferoposteriorly to the urethra)...
predispose a woman to further dysfunction and prolapse later in life. The urethra is part of the anterior wall of the vagina and damage to the support structures...
an unobstructed delivery of the infant. Growths that originate from the urethra and other tissue can present as cysts of the vagina. Vaginal inclusion...
Corpora cavernosa Trabeculae of corpora cavernosa Infra-corporeal residual spongy part Angle Commissure of bulbs Pars intermedia Glans Corona Frenulum Arteries...
urethral lumen (the inner open space or cavity of the urethra), which is surrounded by a spongy tissue, has tissue that "is grossly distinct from the...
function by dilating blood vessels, facilitating increased blood flow into the spongy tissue of the penis, analogous to opening a valve wider to enhance water...
midline. The septum extends from the urethral meatus through the glanular urethra (fossa navicularis) and ends in the tunica albuginea of the human penis...
Corpora cavernosa Trabeculae of corpora cavernosa Infra-corporeal residual spongy part Angle Commissure of bulbs Pars intermedia Glans Corona Frenulum Arteries...
enzymes simple tubular 19 Littré's glands, Morgagni's glands spongy portion of the urethra mucus racemose 20 Lumbar glands abdomen, near the back 21 Mammary...
Corpora cavernosa Trabeculae of corpora cavernosa Infra-corporeal residual spongy part Angle Commissure of bulbs Pars intermedia Glans Corona Frenulum Arteries...
minora that contains the openings. Urinary meatus: the opening of the urethra for urine to pass through. Vaginal opening: entrance to the vagina. Hymen:...
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