What is the opening of the bladder called?

What is the opening of the bladder called?

Urine leaves the bladder via the urethra, a single muscular tube ending in an opening called the urinary meatus, where it exits the body.

What is the muscle layer of the bladder called?

The muscularis propria is the thick, outer muscle layer of the bladder.

What are the three openings in the bladder?

The fundus of the bladder contains three openings which form the trigone of the bladder; the internal urethral orifice and the two ureteric orifices. The detrusor muscle comprises the wall of the urinary bladder. It forms the internal urethral sphincter around the neck of the bladder.

What is the anatomy of the bladder?

Bladder. This triangle-shaped, hollow organ is located in the lower abdomen. It is held in place by ligaments that are attached to other organs and the pelvic bones. The bladder’s walls relax and expand to store urine, and contract and flatten to empty urine through the urethra.

What is detrusor?

The detrusor muscle, also detrusor urinae muscle, muscularis propria of the urinary bladder and (less precise) muscularis propria, is smooth muscle found in the wall of the bladder. The detrusor muscle remains relaxed to allow the bladder to store urine, and contracts during urination to release urine.

What is the bladder trigone?

The trigone is the neck of the bladder. It’s a triangular piece of tissue located in the lower part of your bladder. It’s near the opening of your urethra, the duct that carries urine from your bladder outside of your body. When this area becomes inflamed, it’s known as trigonitis.

What is detrusor hypertrophy?

Thus, the increase in smooth muscle cell size accounts for the increased thickness of the detrusor muscle layer in the bladder wall. Thus, a prominent response to partial obstruction of the urinary bladder outlet is the hypertrophy of the detrusor smooth muscle in the bladder wall.

How many openings does the bladder have?

There is a triangular area, called the trigone, formed by three openings in the floor of the urinary bladder. Two of the openings are from the ureters and form the base of the trigone.