What is the structure and function of the testes?
The testes are oval organs about the size of very large olives that lie in the scrotum, secured at either end by a structure called the spermatic cord. Most men have two testes. The testes are responsible for making testosterone, the primary male sex hormone, and for producing sperm.
What is the supporting structure of the testes?
The supportive structure which contains the testes and epididymis is the d. scrotum. The scrotum is a pouch of skin that descends down and out of the...
What is the function of the testis?
The Testis has following three functions. First, it produces spermatozoa, the male gametes. Second, it synthesizes testosterone, the principal male sex hormone. Third, it participates with the hypothalamus-pituitary unit in regulating reproductive function.
What is the structure of the epididymis?
The epididymis is a narrow, tightly-coiled tube connecting rear of the testicles to the deferent duct (ductus deferens or vas deferens). The epididymis consists of three parts: head, body, and tail. The head of the epididymis is located on superior pole of testis. It stores sperm for maturation.
What are testes made of?
Anatomy of the testes Each is covered by a fibrous capsule called the tunica albuginea and is divided by partitions of fibrous tissue from the tunica albuginea into 200 to 400 wedge-shaped sections, or lobes. Within each lobe are 3 to 10 coiled tubules, called seminiferous tubules, which produce the sperm cells.
What are the layers of the testes?
There are three layers to the tunica, the tunica vasculosa, tunica albuginea and tunica vaginalis.Tunica vasculosa. The tunica vasculosa is the inner layer of the tunica and consists of blood vessels and connective tissue. ... Tunica albuginea. ... Tunica vaginalis.
What are testes?
Listen to pronunciation. (TES-tih-kul) One of two egg-shaped glands inside the scrotum that produce sperm and male hormones. Also called testis.
What are two functions of testes?
The testes have two functions – to produce sperm and to produce hormones, particularly testosterone. Sperm are produced in the seminiferous tubules of the testes.
Where are testes located?
scrotumThe testes are 2 small organs that are found inside the scrotum. The testes make sperm. They also help produce a hormone called testosterone.
What is the structure and function of the epididymis?
The epididymis is a long, coiled tube that stores sperm and transports it from the testes. It appears as a curved structure on the posterior (back) margin of each testis. It is comprised of three sections. These are the head, body,and tail.
How many nerves are in the testis?
The innervation of the scrotum derives from the branches of the following four nerves: genitofemoral, pudendal, posterior femoral cutaneous, and ilioinguinal nerves.
What is the structure of the vas deferens?
The vas deferens (singular) is also called a ductus deferens or a sperm duct. This long muscular tube runs from the epididymis into the pelvic cavity behind your bladder and connects to your urethra through a structure called the ejaculatory duct.