How many axons and dendrites are entering and exiting human male internal urethral sphincter? ?

How many sphincters are in the male urethra?

two sphincters

Males have two sphincters: Bladder internal/neck sphincter, smooth muscle is continuous with the detrusor muscle and is under involuntary control or autonomic control; the function of this sphincter is to keep the bladder closed at the time of ejaculation.

How many sphincters are in the urethra?

Two muscles

Two muscles as urethral sphincters are used to control the exit of urine in the urinary bladder through the urethra. The two muscles are the internal and EUS.

Do men have an internal urethral sphincter?

In males and females, both internal and external urethral sphincters function to inhibit the release of urine. In males, the internal sphincter muscle of urethra functions to prevent reflux of seminal fluids into the male bladder during ejaculation.

What is the internal urethral sphincter composed of?

smooth muscle

The internal urethral sphincter consists of smooth muscle and is continuous with the detrusor muscle of the bladder. The muscle fibers form a circular configuration that is continuous with the smooth muscle fibers of the bladder.

What Innervates the internal urethral sphincter?

The urethral sphincter complex receives both somatic and autonomic innervation. These supply its voluntary and involuntary components, respectively. The smooth muscle fibers of the internal urethral sphincter receive both sympathetic and parasympathetic innervation.

Where is the internal urethral sphincter?

The internal urethral sphincter is a urethral sphincter muscle which constricts the internal urethral orifice. It is located at the junction of the urethra with the urinary bladder and is continuous with the detrusor muscle, but anatomically and functionally fully independent from it.

Do females have internal urethral sphincters?

The female urethra contains an internal sphincter and an external sphincter. The internal sphincter is more of a functional concept than a distinct anatomic entity. The external sphincter is the muscle strengthened by Kegel exercises. The pubourethral ligaments suspend the female urethra under the pubic arch.