Where is the scrotum on a man?

The scrotum of male friends is a very critical part. If there is any disease in this part, the health of male friends will be greatly tested. In severe cases, they will lose their original fertility. Therefore, the harm caused by this disease must not be ignored. Not only do we need to pay attention to the health of this part, but we also need to pay attention to the health of the testicles of male friends.

The name of a human body part. The sac-like structure that hangs down from the male vulva contains organs such as the testicles, epididymis, and spermatic cord.

Testicles:

Male reproductive gland. One on each side, located in the scrotum. The testicle is a slightly flattened oval body with a smooth surface, divided into two sides, inside and outside, front and back edges, and upper and lower ends. The front edge is free, the back edge is attached to the mesentery, and the upper part of the back edge is connected to the epididymis. There is a layer of tough fibrous membrane on the surface of the testicle called the tunica albuginea. The tunica albuginea thickens at the back edge and generates several small septa toward the testicular parenchyma, dividing the parenchyma into many testicular lobules, which are composed of 2 to 3 convoluted seminiferous tubules and testicular stroma. After the convoluted seminiferous tubules leave the testicle, they form the rete testis, which sends out several testicular efferent ducts connected to the epididymis. The testicle has the function of producing sperm and secreting male hormones.

Epididymis:

Anatomical name. It is an anatomical tissue that is closely attached to the upper end and posterior edge of the testis. It is about 4 to 6 cm long and 0.4 to 0.5 mm in diameter. It can be divided into three parts: ① The head of the epididymis: the enlarged part at the upper end of the epididymis; ② The body of the epididymis: the flat and round part in the middle of the epididymis; ③ The tail of the epididymis: the thinner part at the lower end of the epididymis. There is a layer of white membrane on the surface of the epididymis. The head of the epididymis is formed by the winding of the testicular efferent ductules. The ends of each efferent ductule merge into an epididymal duct. The epididymal duct is very long and twists downward to form the body of the epididymis and the tail of the epididymis. The end of the epididymal duct bends backward and upward to form the vas deferens. The epididymis stores sperm and secretes fluid to nourish sperm, promote sperm development and maturation, and enhance its motility. The epididymis is a common site for male genital tuberculosis, which forms a nodule at the lesion.

Spermatic cord:

The spermatic cord is a cord-like object that suspends the testicle and epididymis. It is made up of blood vessels, lymphatic vessels, nerves and vas deferens covered with a membrane. The spermatic cord starts from the internal inguinal ring, runs in the inguinal canal, enters the scrotum after exiting the subcutaneous ring, and ends at the posterior edge of the testicle. The total length is about 11 to 15 cm. When the spermatic cord passes through the inguinal canal, the iliohypogastric nerve passes above, and the ilioinguinal nerve and the genital branch of the genital femoral nerve pass below. The vas deferens is located in the middle.

The plexus of the racemose veins is located in the front part, and merges into 2 to 3 internal spermatic veins at the internal ring, and generally merges into one main trunk at the retroperitoneum. The left internal spermatic vein returns to the left renal vein, and the right internal spermatic vein returns directly to the inferior vena cava. The spermatic cord lymphatic vessels collect lymph from the testicles and epididymis, and do not communicate with the inguinal lymph nodes, but directly flow into the iliac lymph nodes and lumbar lymph nodes.