Anatomy Of The Urethra

The male urethra is divided into three parts. The prostatic urethra starts at the neck of the bladder and is located in the prostate.

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In women the urethra is a very thin tube about 2 inches long.

Anatomy of the urethra. The opening of the urethra at the tip of the glans is called the urethral meatus. At the bladder-urethral junction a thickening of the smooth muscle forms the internal urethral sphincter an involuntary sphincter that keeps the urethra closed when the urine is not being passed. The female urethra is about 4 cm long and averages 6 mm in diameter.

Its wall is lined with mucous membranes and contains a relatively thick layer of smooth muscle tissue. The fundus is the base of the bladder which is formed by the posterior wall and contains the trigone of the bladder and is lymphatically drained by the external iliac lymph nodes. The male urethra is a narrow fibromuscular tube that conducts urine and semen from the bladder and ejaculatory ducts respectively to the exterior of the body see the image below.

Urethra duct that transmits urine from the bladder to the exterior of the body during urination. Except its uppermost end the urethra is embedded within the anterior vaginal wall. It is lined by stratified columnar epithelium which is protected from the corrosive urine by mucus secreting glands.

It extends from the internal urethral orifice of the bladder to the external urethral orifice of the external genitalia. The urethra is held closed by the urethral sphincter a muscular structure that helps keep urine in the bladder until voiding can occur. The last portion of the urethra after the penile urethra through which the urine travels before reaching the tip urethral meatus is the part within the head of the penis.

In human females and other primates the urethra connects to the urinary meatus above the vagina whereas in marsupials the females urethra empties into the urogenital sinus. The urethras wall is made of. The course of urethra is different between males and females.

One end is connected to the bladder and the other end exits the body at the tip of the penis. In men the urethra is much longer than it is in womenabout 8 inches longbut it is still very thin. This is typically the widest part of the urethra which then connects to the membranous urethra found in the urogenital diaphragm.

The urethras lining has longitudinal folds and one of them has rear localization and is known as urethral crest. The urethra is closely linked with the reproductive organs so the anatomy of the urethra is different between males and. The urethra is a tube that conveys urine from the urinary bladder to the outside of the body.

The female urethra is about 4 cm long passing from the neck of the bladder at the lower angle of the trigone to the external urethral meatus which is in front of the vaginal orifice and 25 cm behind the clitoris. Anatomy of the Urethra. It conveys urine from the urinary bladder to outside the body.

Urine is collected in the body of the bladder and finally it is voided through the urethra. The urethra from Greek οὐρήθρα ourḗthrā is a tube that connects the urinary bladder to the urinary meatus for the removal of urine from the body of both females and males. The proximal urethra is lined.

The primary function of the urethra is to transport urine from the bladder to the tip of the penis allowing the bladder to empty when urinating. ANN GORMLEY FEMALE URETHRA GrossMicroscopic The female urethra extends 3 to 5 cm from the bladder neck to the external urethral meatus. External urethral sphincter has the same structure in both sexes.

Anatomy of the Urethra LAWRENCE M. The urethra is the vessel responsible for transporting urine from the bladder to an external opening in the perineum. A common characteristic between the womans urethra and the one of a man is the presence of urethral gaps as well as urethral orifices.

Organs of the renal system Organs of the renal system. The prostatic urethra membranous urethra and the spongy urethra. In anatomy the urethra from greek οὐρήθρα ourḗthrā is a tube that connects the urinary bladder to the urinary meatus for the removal of urine from the body of both females and males.

One end is connected to the bladder and the other end exits the body just above the vaginal opening. It is skeletal muscle and under voluntary control. However in males the external sphincteric mechanism is more complex as it correlates with fibers of the rectourethralis muscle and the levator ani muscle.

It is formed by the anatomy of the bladder neck and proximal urethra. The urethra is the excretory canal of the urinary bladder. This fibromuscular tube from the lumen outward is composed of a mucosal lining a submucosal layer and a muscular layer.

Its lumen is slightly curved as it passes from its internal position in the retropubic space perforates the perineal membrane and ends by opening into the vestibule directly above the vaginal opening. The urethra anatomy term someone gave to this part of the urethra is fossa navicularis. The urethras only function in women is to carry urine out of the body.

It also contains numerous mucous glands called urethral glands that secrete mucus into the urethral canal. The urethra transports urine thats stored in the bladder out of the body.

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