Male genital organs
In men , two seminal glands (testicles) and their appendages belong to the internal genital organs . The testicles are located in the right and left half of the scrotum. Their function is to produce seminal bodies (sperm). Spermatazoidov – it’s male gametes having a movable tail, through which are promoted through the female genital tract to meet the egg. The effluent from each egg vas deferens lying in the composition of the spermatic cord from the scrotum, proho dit through the inguinal canal into the abdominal cavity and down into the pelvis to the base of the bladder. Here, in each of the vas deferens by kryvaetsya duct seminal vesicle, also before stavlyayuschy steam gland at the ma scrap basin under the base of the bladder. It produces a liquid protein part of the seed, as well as androgen hormones – testoren and a small amount of estrogen and progesterone. After connecting to the duct of the seminal vesicle, the vas deferens is called the vas deferens ; it penetrates the body of the prostate gland located below the bladder and opens the mouth of the urethra in the initial section ka Nala on the sides of the so-called seed tubercle. The prostate gland is an auxiliary genital organ. Numerous small ducts of the prostate is lezy open next to each of the mouths of the ejaculatory duct. The role of secret Representat tion is to stimulate prostate movements seed cells and the establishment of optimal conditions for their activity.
For external genital organs include Polo howl member and scrotum.
The penis is the copulation organ that consists of the root, body, and head . The penis consists of three cavernous bodies, each of which represents a dense network of veins; in one of them finishes camping head MEMBER on, coated foreskin extends mo cheispuskatelny Single NAL. Filling ne scheristyh bodies with blood, while the termination of the outflow of its special muscle mechanism causes straightening and hardening (erection) of the penis during intercourse. At the root of the penis are two more small formations, the so-called Cooper ( bulbourethral ) glands, which open in the back of the urethra. They secrete a secretion that is mixed with seminal fluid, diluting semen and protecting the urethra from irritation.
The scrotum is the skin-muscle membrane where the testes are located. It performs a protective function.
In women, the internal genital organs include the ovaries, fallopian tubes, uterus, and vagina.
Ovaries – is paired gonads that produce yaytseklet ki, of which after fertilization, the developing fetus. It also produces the female hormone estradiol and, in small amounts, the male sex hormone testosterone. The ovaries are located in the pelvis, where they are strengthened on each side of the uterus on its wide ligaments.
Uterus Presenting a hollow muscular organ located ny in the middle of a little of the pelvis between the rectum (back) and Mo chevym bubble (spe mong).
From angles mat ki go hand in oviducts, or ma accurate (fallopian) tube ; wide con Tzom – funnel – they open in the peritoneal cavity directly with sedstve ovary. An egg released in each menstrual period from the germinal epithelium of the ovary enters the uterine tube and, moved by the oscillation of the cilia of the epithelium of the mucous membrane of the tube, enters the uterine cavity. If oplo dotvoreniya egg seed Taurus, which usually occurs in the fallopian tube, yaytseklet ka introduced into the lining of the uterus, where it develops during pregnancy. The lower part of the cervix opens with an external opening into the upper part of the vagina – the muscle channel lined with the mucous membrane and serves as the copulation organ.
The external genitalia of a woman comprise the vestibule, the labia minora and labia majora, the clitoris, the Bartholinia and mammary glands. The vagina opens into the genital slit prelude, bordered by two pairs of skin folds: internal – small lips and external – big lips. At the base of the small lips on each side are cavernous bodies filled with blood. Under the posterior end of the cavernous bodies are paired glands ( Bartholin’s ), secreting a secret moisturizing the mucous membrane of the small lips and vestibule. Small lips form in front a fold covering the female penis – the clitoris. On the eve of the vagina, the opening of the urethra opens. The mammary glands determine the secondary sexual characteristics of women and produce milk in the postpartum period.