The urethra is a tube that carries urine from the urinary bladder to the outside. The length depends on the sex. In females it is 4 cm (anterior to the vagina) and in males is 20 cm (through the penis).
The vaginal opening is situated to the back of the vaginal folds, between the anus and the urethra. The urethra is the opening for urine to exit the body, it is the small opening in the center of the labial folds.
No. You're thinking of the chicken or any type of bird that has this "feature," not cows. A cow's rectum is above the vulva, and the urethra and vagina is found in the vulva. The urethra is situated in the vagina but branches from the vagina to the kidneys. The entrance to the urethra is found in the first few inches of the cow's vagina.
The erectile tissues associated with the penis, primarily the corpora cavernosa and the corpus spongiosum, are located surrounding the urethra. The corpora cavernosa are situated on either side of the urethra, while the corpus spongiosum, which contains the urethra, runs along the underside of the penis. This arrangement allows for the expansion and engorgement of these tissues during erection, facilitating sexual function.
Urine is expelled via the urethra located above the vaginal opening.
The kidneys, aorta, urethra, and inferior vena cava are located in the abdominal cavity. Specifically, the kidneys are situated in the retroperitoneal space, which is behind the peritoneum that lines the abdominal cavity. The aorta and inferior vena cava run along the posterior abdominal wall, while the urethra extends from the bladder to the external body.
the urethra
The prostatic or membranous urethra
The prostate gland is located below the bladder and surrounds the upper part of the urethra in males. It is situated just in front of the rectum.
The tissue situated in the lining of the urinary bladder and urethra, where stretching occurs, is called transitional epithelium. This specialized type of epithelial tissue is capable of expanding and contracting, allowing it to accommodate varying volumes of urine. It features cells that can change shape, typically appearing cuboidal when the bladder is empty and more flattened when it is full. This adaptability is crucial for the bladder's function in storing urine.
Dilating the urethra is done when there is a stricture (abnormal narrowing) of the urethra in order to make the urethra wider.
The urethra.
The ejaculatory duct opens into the prostatic part of the urethra, specifically where the prostatic urethra meets with the membranous urethra. This junction is located within the prostate gland.