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The main male sex organs are the penis and the scrotum, which contains the testicles that produce semen and sperm, which, as part of sexual intercourse, fertilize an ovum in the female's body; the fertilized ovum develops into a fetus, which is later born as an infant. The corresponding system in females is the female reproductive system.
The vas deferens (pl.: vasa deferentia), ductus deferens (pl.: ductūs deferentes), or sperm duct is part of the male reproductive system of many vertebrates. In mammals, spermatozoa are produced in the seminiferous tubules and flow into the epididymal duct. The end of the epididymis is connected to the vas deferens.
This is an accepted version of this page This is the latest accepted revision, reviewed on 1 December 2024. Sac of skin that protects the testicles For the obsolete dinosaur fossil name, see Megalosaurus § "Scrotum humanum". Scrotum Human scrotum in a relaxed state (left) and a tense state (right) Details Precursor Labioscrotal swellings System Reproductive system Artery Anterior scrotal ...
The spermatic cord is sensitive to torsion, in which the testicle rotates within its sac and blocks its own blood supply. Testicular torsion may result in irreversible damage to the testicle within hours. A collection of serous fluid in the spermatic cord is named 'funiculocele'.
The function of the blood–testis barrier may be to prevent an auto-immune reaction. [13] Mature sperm (and their antigens) emerge significantly after immune tolerance is set in infancy. [13] Since sperm are antigenically different from self-tissue, a male animal can react immunologically to his own sperm. The male can make antibodies against ...
The vesicles receive blood supply from the vesiculodeferential artery, and also from the inferior vesical artery. ... "Male Reproductive System: prostate, ...
It is also responsible for carrying the blood supply of the penile skin, a longitudinally-coursing anastomotic network of vessels that arise from the external pudendal vessels. [1] In the scrotum, the dartos fascia acts to regulate the temperature of the testicles, which promotes spermatogenesis. It does this by expanding or contracting to ...
Blood can leave the erectile tissue only through a drainage system of veins around the outside wall of the corpus cavernosum. The expanding spongy tissue presses against a surrounding dense tissue (tunica albuginea) constricting these veins, preventing blood from leaving. The penis becomes rigid as a result.