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This is an accepted version of this page This is the latest accepted revision, reviewed on 22 January 2025. Sac of skin that protects the testicles For the obsolete dinosaur fossil name, see Megalosaurus § "Scrotum humanum". Scrotum A human's scrotum in a relaxed state (left) and a tense state (right) Details Precursor Labioscrotal swellings System Reproductive system Artery Anterior scrotal ...
Sertoli–Leydig cell tumour is part of the sex cord-stromal tumour group of ovarian neoplasms. These tumors produce both Sertoli and Leydig cells and lead to an increased secretion of testosterone in ovaries and testicles.
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 spermatic cord is the cord-like structure in males formed by the vas deferens (ductus deferens) and surrounding tissue that runs from the deep inguinal ring down to each testicle. Its serosal covering, the tunica vaginalis, is an extension of the peritoneum that passes through the transversalis fascia. Each testicle develops in the lower ...
ot. The genital ridge from which either the ovary or testis is formed. o. The left ovary: t. Testis in the place of its original formation; t', together with the dotted lines above, indicates the direction in which the testis and epididymis descend from the abdomen into the scrotum. Skene's glands a.k.a. paraurethral gland: pr. Prostate: u. Uterus.
A testicle or testis (pl. testes) is the gonad in all male bilaterians, including humans, and is homologous to the ovary in females. Its primary functions are the production of sperm and the secretion of androgens, primarily testosterone. The release of testosterone is regulated by luteinizing hormone (LH) from the anterior pituitary gland.
The connective tissue of the tunica albuginea testis extends into the substance of the testis to form fibrous partitions - the septa testis. [1] At the posterior aspect of the testis (where the serosa of testis is deficient to allow for the attachment of the epididymis), the tunica albuginea extends into the testis to form the mediastinum ...
The lobules are conical in shape, the base being directed toward the circumference of the organ, the apex toward the mediastinum testis. Each lobule is contained in one of the intervals between the fibrous septa which extend between the mediastinum testis and the tunica albuginea , and consists of from one to three, or more, minute convoluted ...