Testes Definition Anatomy

Testes the organ of the male animal. The testes are formed in the abdominal cavity and descend into the scrotum during the seventh month of gestation when they are stimulated by androgens.

Testes Differentiation Stroma Parenchyma

The testes also called testicles are two oval shaped organs in the male reproductive system.

Testes definition anatomy. The testes or testicles are part of the male genitalia or sexual reproductive organ. In most vertebrates the testes are contained inside the body. Testosterone release is controlled by the anterior pituitary luteinizing hormone.

Between the tubules are cells that secrete testosterone and other masculinizing steroid hormones and oestrogens. These hormones control the development of the reproductive organs and other male characteristics such as body and facial hair low voice and wide shoulders. The testis is divided into numerous lobules separated by septa each lobule containing one to three seminiferous tubules within which the spermatozoa are produced by meiosis.

Anatomy of the testes. Whereas sperm production is controlled both by the anterior pituitary follicle stimulating hormone and gonadal testosterone. The testes are responsible for the production of sperm cells and the male sex hormone testosterone.

Medical definition of testis. About 2 percent of newborn boys have an undescended testis at birth but this condition often corrects itself by the age of three months. Also known as testicle.

Each is an ovoid body about 4 cm long and 2 to 25 cm in width and thickness enclosed within a dense inelastic fibrous tunica albuginea. The testis or testicle contains the long coiled seminiferous tubules in which the spermatozoa are formed. The scrotum hangs outside the body in the front of the pelvic region near the upper thighs.

Testicle or testis is the male reproductive gland or gonad in all animals including humans. These bilateral though not always symmetrical anatomical structures are the site of sperm production. Testis commonly known as the testicles are a pair of ovoid glandular organs that are central to the function of the male reproductive system.

A typically paired male reproductive gland that produces sperm and secretes testosterone and that in most mammals is contained within the scrotum at sexual maturity. It is a structure that is ovoid in shape and between four to six centimeters in length. The primary reproductive organ of male animals in which sperm and the male sex hormones androgens are produced.

The testes produce and store sperm and are also the bodys main source of male hormones such as testosterone. The functions of the testes are to produce both sperm and androgens primarily testosterone. Theyre contained in a sac of skin called the scrotum.

In many mammals however the testes are enclosed in an external scrotum. It is homologous to the female ovary.

Testicular Self Exam Young Men S Health

Testis Anatomy Britannica