Male urethral
Male urethra from the urethral orifice in the internal bladder to the external urethral orifice of the penis, from 17.5 to 20 cm in length which consists of the following parts:
Prostatic urethra
Widest channel, 3 cm in length running almost vertically through the prostate gland, from the base to the apex and closer to the anterior surface. Channel such as a coil shape, the wider the middle, the middle to later join the increasingly shallow pars membrane. This channel transverse section facing forward.
In the posterior wall are shaped Krista uretralis skin, mucous membranes formed by the protrusion, the underlying tissue 15-17 cm, 3 cm high. At left and right are Krista uretralis prostatic sinus orifice penetrated by the prostatic ducts from the lateral lobes of the prostate gland and ducts of the prostate gland and the medial lobe empties behind Krista uretralis.
The front of Krista uretralis there are protrusions called seminal kolikus. At the orifice of the utricle, prostatic 6 cm round-shaped bag that goes to the top and to the back of the medial lobe. Dindingya consists of muscular and connective tissue layer of mucous membrane, some small glands open to the surface.
Urethra membrane
The urethra is the channel that the shortest and shallowest, walking down a dank e leads to the front of the apex of the prostate gland and the bulbus urethra. Pars membranasea penetrate the diaphragm urogenolitalis along approximately 2.5 cm below the symphysis pubis rear side covered by a network of urethral sphincter membranase. In front of this line there is a dorsal vein of the penis to reach the pelvis between the transverse ligament and the ligament arquarta pelvic symphysis.
Cavernous urethra
The urethra has the longest line of the urethra, in the corpus cavernous urethra, approximately 15 cm in length ranging from pars membranasea to the superficial orifice of the urogenital diaphragm. Pars cavernous urethra runs forward and upward toward the front of the pubic symphysis. At the time of the penis contract, pars kovernosus would turn down a dank e front. This kovernosus shallow pars accordance with penile corpus and dilated to 6 mm in the rear. Dilated at the front of the penis gland which will form nafikularis urethral fossa.
External urethral orifice
This section is part erector most contracts, in the form of a vertical slit. Both sides closed by two small lip length 6 mm. Uretralis gland empties into the urethra and consists of two parts:
Glands beneath the tunica mucosa in the corpus cavernous urethra (pars uretralis gland).
Lacunae: the inside of a larger Lacuna ephitelium located on the upper surface is called Lacuna magna.
Orifice of Lacuna spread forward so easily blocking the catheter tip passed along the way.
