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The prostatic veins form a well-marked prostatic plexus which lies partly in the fascial sheath of the prostate and partly between the sheath and the prostatic capsule. [citation needed] It collects blood from the prostate, and (via the v. dorsalis profunda clitoridis) the corpora cavernosa of penis. [1]
The Batson venous plexus (Batson veins) is a network of valveless veins in the human body that connect the deep pelvic veins and thoracic veins (draining the inferior end of the urinary bladder, breast and prostate) to the internal vertebral venous plexuses. [1]
The vesical venous plexus is a venous plexus situated at the fundus of the urinary bladder. It collects venous blood from the urinary bladder in both sexes, from the accessory sex glands in males, and from the corpora cavernosa of clitoris in females (via the v. dorsalis profunda clitoridis). [ 1 ]
The veins of the prostate form a network – the prostatic venous plexus, primarily around its front and outer surface. [4] This network also receives blood from the deep dorsal vein of the penis, and is connected via branches to the vesical plexus and internal pudendal veins. [4] Veins drain into the vesical and then internal iliac veins. [4]
In vertebrates, a venous plexus is a normal congregation anywhere in the body of multiple veins. [1]
The pudendal venous plexus (vesicoprostatic plexus) lies behind the arcuate pubic ligament and the lower part of the pubic symphysis, and in front of the bladder and prostate. Its chief tributary is the deep dorsal vein of the penis , but it also receives branches from the front of the bladder and prostate.
From the prostatic plexus, the deoxygenated blood travels through the venal system until it arrives at the center of the circulatory system for resupply with oxygen in the lungs and recirculation through the left side of the heart. [citation needed] The deep vein also communicates below the pubic symphysis with the internal pudendal vein.
The vas deferens receives innervation from an autonomic plexus of post-ganglionic sympathetic fibres derived from the inferior hypogastric plexus. [ 3 ] : 1297 It is innervated by a variety of nerve endings , although of the efferent nerves the sympathetic innveration dominates. [ 7 ]