What are the testes and how do they function?

The testes are egg-shaped glands situated in the scrotum. They produce spermatozoa. The sperm is collected at the back of the testicles in a maze of coiled tubes called the epididymis. It then travels up toward the seminal vesicles and prostate through a long tube known as the vas deferens.

The two testes (testes or testicles) are the male gonads. Each of them hangs freely on the funiculus within the scrotum (scrotum). within the testicles, sperm and testosterone, the male steroid hormone , are produced for all times in men.

What are the testicles? 

The paired testicles (testicles) are a part of the interior male genital organs and therefore the production sites of the seminal threads (sperm). they need an elongated shape and a mean diameter of three centimeters. they're flattened on the edges , about four centimeters long and 25 to 30 grams in weight. the top of the epididymis lies at the upper end of every testicle, the rear of the epididymis body.

The size of the testicles varies from man to man and is additionally rock bottom during puberty. In adulthood, the testicle increases in size, reaches a maximum at around 40 years aged , then shrinks again somewhat from the age of fifty . the dimensions of the testicles isn't associated with weight .

Testicles: structure The inside of the testicles is split into 250 to 300 small lobes by many animal tissue bars and partitions. These lobules (Lobuli testis) house strongly twisted, fine tubes, the seminiferous tubules, which open into a network-like tubule system (Rete testis).

The seminiferous tubules are surrounded by loose animal tissue during which the so-called intermediate cells (Leydig cells) lie.

Medical Animation: Testicular Cancer


What is the function of the testicles? 

The seminiferous tubules within the testis are lined with the seminal epithelium, within the cells of which the sperm cells (sperm) are formed in several steps from preliminary stages. These then reach the epididymis via the plexus and other channels, where they're stored.

The testes also produce the male steroid hormone testosterone, within the Leydig cells. Testosterone is liable for the formation of the male's secondary sexual characteristics like deep voice, beard growth, hair on the top , armpits and pubic area. Muscle distribution and bone structure also are influenced by testosterone.

Where are the testicles located? 

The testicles dwell the scrotum (scrotum) - a skin pocket between the legs, the penis and therefore the perineal region. this suggests that the testicles are faraway from the body cavity, which is vital for the temperature-sensitive sperm: The temperature within the scrotum is about two to 2 and a half degrees below that within the abdomen (ideally it's constantly 34 to 35 degrees Celsius).

What problems can the testicles cause? 

In the course of embryonic development, the testicles develop within the abdomen of the unborn child then migrate into the scrotum via the canalis inguinalis before birth. If the testicles don't descend, the testicles rise (Maldescensus testis, abdominal testes, inguinal testicles).

Inflammation of the testicles (orchitis) is usually caused by viruses and bacteria. As a rule, the epididymis is additionally inflamed (epididymitis). The combined clinical picture is named epididymoorchitis.

A vein on the testicle is named varicocele or vein rupture. If left untreated, it can cause infertility. The hydrocele (water break) is additionally one among the testicular diseases. Liquid accumulates within the scrotum.

One speaks of a testicular torsion when the testicle within the scrotum on the funiculus twists about its longitudinal axis. this is often extremely painful and must be treated immediately (within six hours) to stop the testicular tissue from dying from a scarcity of blood supply.

Testicular carcinoma (testicular cancer) mainly occurs in men under 40 years aged . it's easy to treat.

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