What is the blood supply of the bladder?

The vasculature of the bladder is primarily derived from the internal iliac vessels. Arterial supply is via the superior vesical branch of the internal iliac artery. In males, this is supplemented by the inferior vesical artery, and in females by the vaginal arteries.

What is the blood supply to the urethra?

The arterial supply to the male urethra is via several arteries: Prostatic urethra – supplied by the inferior vesical artery (branch of the internal iliac artery which also supplies the lower part of the bladder). Membranous urethra – supplied by the bulbourethral artery (branch of the internal pudendal artery)

Which autonomic plexus Innervates the urinary bladder?

Autonomic control of bladder function. The sympathetic innervation of the bladder originates in the lower thoracic and upper lumbar spinal cord segments (T10-L2), the preganglionic axons running to sympathetic neurons in the inferior mesenteric ganglion and the ganglia of the pelvic plexus.

What nerve stimulates the bladder?

Pelvic parasympathetic nerves: arise at the sacral level of the spinal cord, excite the bladder, and relax the urethra. Lumbar sympathetic nerves: inhibit the bladder body and excite the bladder base and urethra.

Where does the nerve supply for the bladder come from?

Describe briefly the nerve supply of urinary bladder. Urinary bladder is supplied by autonomic nervous system. Parasympathetic innervation: Efferent fibers arise from from S2 – S4 spinal segments and supply urinary bladder via pelvic splanchnic nerves /nervi ergentes. They are concerned with emptying of the bladder..

What kind of blood is supplied to the urinary bladder?

The urinary bladder is supplied by branches of the internal iliac artery: the superior and inferior vesical arteries (in males). Note that the latter are replaced by vaginal arteries in females. Venous blood is conveyed by similarly named veins that accompany the arteries. Together these veins form the vesical venous plexus.

What are the symptoms of nerve damage in the bladder?

Damaged nerves may send signals to the bladder at the wrong time, causing its muscles to squeeze without warning. The symptoms of overactive bladder include urinary frequency —defined as urination eight or more times a day or two or more times at night Poor control of sphincter muscles.

How does the sympathetic nervous system communicate with the bladder?

The sympathetic nervous system communicates with the bladder via the hypogastric nerve (T12 – L2). It causes relaxation of the detrusor muscle. These functions promote urine retention. The parasympathetic nervous system communicates with the bladder via the pelvic nerve (S2-S4).