a result of sexual intercourse male sex cells (sperm) fall into the female reproductive tract.During intercourse the man enters the erect penis into a woman's vagina.Sexual arousal leads to the exit of semen from the testicles and out through the urethra during ejaculation.
stage of excitation
sexual arousal goes through several stages.In each of these stages, the body part observed changes.After the rise of the desire body of man and woman enter into a series of successive phases:
• plateau phase;
manifestations of sexual arousal in men and women differ significantly, as well as among members of the same sex.However, orgasm is the culmination of the sexual act for both parties.
ejaculation of semen during the male orgasm is a prerequisite of fertilization.It is believed that the female orgasm increases the likelihood of conception.Achieving orgasm is the main purpose of sexual intercourse.For many, the desire to experience the p
Forcing a man there is a sharp increase in blood flow in the genital area, which leads to penile erection.In addition, increased blood pressure, heart rate and respiratory rate.
penis becomes more intense, and his head can be moistened secret bulbourstralnyh glands (located at the base of the penis).The testicles are cut and pulled to the perineum.In the course of a few cuts sperm from the epididymis are moving to the end section of the vas deferens.Here they are mixed with a secret prostate and seminal vesicles to form a seed liquid.At that moment a man feels a sense of "inevitability of ejaculation."This means that ejaculation occurs even at the termination of stimulation of the penis.
orgasm after orgasm the penis and testicles return to its normal state.Breathing and heart rate slows, blood pressure decreases.It is believed that the female orgasm facilitates the passage of sperm into the uterus during sexual intercourse, thereby increasing the likelihood of fertilization.However, many women never experience orgasm during intercourse, but still able to become pregnant.
During the excitement phase in women observed swelling of the clitoris and the vaginal walls.Large labia become a darker shade, and labia flatten and somewhat divergent.One of the first signs of sexual arousal in women is moisturizing the vagina as a result of stimulation of the secretory cells of the vaginal mucosa.Mucus moistens its walls in preparation for the penetration of the penis.There is also a slight breast engorgement and nipple voltage.Areola also swells and becomes slightly darker.Increases blood pressure, breathing rate and muscle tone.Causing a transition to a phase plateau or gradually fades away.
If the excitement continues, a woman enters a phase of the plateau, which is characterized by increased blood flow to the genitals.The lower part of the vagina is narrowed and tightly encloses the penis.The upper part of the vagina, on the contrary, somewhat expanded and lifted slightly above the uterus cavity of the pelvis, which also increases the volume of the vagina and create a reservoir for receiving the sperm.During this phase, the labia minora become darker and shorter, and the clitoris retracts into the hood klitoralyyugo (analogue of the foreskin).Perhaps the release of a few drops of secret vestibular glands in the vestibule.With continued stimulation, this phase may result in orgasm - the third and shortest period.Female orgasm can be very intense, but rarely lasts more than 15 seconds.It begins with the rhythmic contractions of the lower part of the vagina.The first cuts occur at intervals of 0.8, as in the male orgasm.The intervals are gradually increased.It is possible that these reductions contribute to the promotion of sperm into the uterus, and uterine (fallopian) tube.The wave of cuts spreads along the walls of the vagina to the uterus itself.Reduced as the muscles of the pelvis and the perineum (area between the anus and the vagina), and the muscles around the opening of the urethra and rectum.Depending on the strength of a woman experiences an orgasm 5 to 15 waves of contractions.The muscles of the back and legs can be subjected to involuntary contractions, causing the back extension and flexion of the fingers.Heart rate can reach 180 beats per minute, and respiration - 40 per minute.Increased blood pressure, dilated pupils and celebrated nostrils.At the moment of orgasm, the woman often is breathing, or holds his breath.
After the climax comes the phase of detente.Mammary glands return to their normal state, the body's muscles relax, breathing and heart rate return to normal.After ejaculation, the man comes refractory period, during which he is not capable of sexual arousal.This latency period can last from two minutes to several hours.In women, there is no refractory period, some are able to experience multiple orgasms.