characteristics that distinguish man and a woman, a great many.This attitudes and character traits and physiological differences, and the anatomical figure.Dissimilar from male and female and the external and internal sex characteristics.
reproductive system - it is the whole set of the bodies responsible for the process of reproduction.Men and women are not the same.In this connection distinguish two groups of symptoms:
• primary.These include agencies directly responsible for fertilization, fetal development and the formation of gametes.Thus, in men to those featured include prostate, ovaries and penis, and women - the uterus, vagina, etc.These bodies have different functions and have different structures;
• secondary characteristics are, and those and other members of the human race, but they look different.These include mammary glands, muscles and skeleton, body hair, voice, subcutaneous tissue, and others.
female reproductive system
Its main feature - the formation of eggs due to which fertilization occurs, the formation and development of a new organism.
gametes (sex cells) mature in two ovaries, located deep in the pelvis.This process is made possible by the action of follicle-stimulating hormone, which is produced by the pituitary gland.Around the egg is formed on the surface of ovarian vesicle (follicular), which is approximately fourteen days bursts.This allows to get the gamete into the fallopian tube, where under the influence of the fluid flow is moving in the direction of the uterus.Ovaries push ripe egg every four weeks.That's reproductive system of women is preparing to fertilize.
endometrium becomes thicker, the number of blood vessels and nutrients it increases significantly.If, while in the fallopian tubes as a result of sexual intercourse gamete is fertilized by sperm, there is a new embryonic stem cells.It attaches to the endometrium, which then begins to develop further, turning over time into an embryo.The period of pregnancy delivery.The fruit comes to light through the vagina.
In the case where the compound of gametes (male to female) does not happen, the egg with blood and mucosal thickening reject the uterus.This period, which lasts several days, is called "menstruation."At that time, reproductive system undergoes small hormonal fluctuations, resulting in a woman may experience lower abdominal pain and feel some discomfort.After a certain time in the ovary begins to re-emerge from the follicle gamete.
Male reproductive system
male reproductive system consists of the exterior (the scrotum, testicles and penis) and internal organs (prostate and seminal vesicles).
Testicles - a male sex glands, which are two small organ.They are placed in the scrotum.Daily testes produce huge number of new sex cells - sperm consisting of a head and a tail.In addition, the authority responsible for the production of androgens, thereby acting as endocrine glands.
during intercourse the sperm move through the vas deferens and are combined with the secretion produced by accessory glands.Thus, a man's semen - sperm.
ducts through which sperm move from the scrotum should be in the abdomen and goes into the urethra - the urethra.It is a thin tube that is located inside the penis and leads from the bladder to the outside.
Sperm carry important genetic material - chromosomes.
human reproductive system is designed to fulfill the most important function - reproduction.
