The female gonads produce female gametes eggs ; the male gonads produce male gametes sperm. Its function is to enable reproduction of the species.
The fleshy area located just above the top of the vaginal opening is called the mons pubis pronounced: Unless the egg is fertilized by a sperm while in the fallopian tube, the egg dries up and leaves the body about 2 weeks later through the uterus.
In addition to differences in nearly every reproductive organ, numerous differences typically occur in secondary sexual characteristics. Diseases of the human reproductive system are very common and widespread, particularly communicable sexually transmitted diseases.
It can also be due to a straddle injury such as when falling onto a beam or bicycle frame or vaginal trauma from sexual abuse. The ovulatory phase is the midpoint of the menstrual cycle, with the next menstrual period starting about two weeks later.
The duct enlarges and becomes thicker-walled at the lower end of the tail of the epididymis, where it becomes continuous with the ductus deferens.
There are a number of other homologous structures shared between male and female reproductive systems. The prostate is of a firm consistency, surrounded by a capsule of fibrous tissue and smooth muscle.
The tunica albuginea has extensions into each testis that act as partial partitions to divide the testis into approximately compartments, or lobules. Embryos of the two sexes are initially alike in possessing similar duct systems linking the undifferentiated gonads with the exterior and in having similar external genitalia, represented by three simple protuberances.
Marked changes in height and weight occur as hormonal secretion from the testes increases. Prostate cancer is almost exclusively confined to the outer zone.
Most men have two testes. Two hormones, follicle stimulating hormone FSH and luteinizing hormone LHare released from the brain and travel in the blood to the ovaries.
They produce hormones and contain eggs. The lower portion of the uterus is called the cervix and opens into the vagina, or birth canal. Facial hair develops, as well as hair on the chest, abdomen, and limbs.
It commences at the lower part of the tail of the epididymis and ascends along the back border of the testis to its upper pole. The male sex hormone testosterone is produced by Leydig cells. The hormone may also be necessary to cause maturation of sperm and to heighten the sex drive of the male.
The larynxor voice box, enlarges, with resultant deepening of the voice. The body of the penis, sometimes referred to as the shaft, is cylindrical in shape when flaccid but when erect is somewhat triangular in cross sectionwith the angles rounded.
At birth the organs appropriate to each sex have developed and are in their adult positions but are not functioning. The cells multiply thousands of times and move to new positions to eventually become the embryo pronounced: The rise in estrogen from the dominant follicle triggers a surge in the amount of luteinizing hormone that is produced by the brain.
This part of the urethra has on its floor or posterior wall a longitudinal ridge called the urethral crest. The principal functions of these structures are to transport the spermatozoa from the testes to the exterior, to allow their maturation on the way, and to provide certain secretions that help form the semen.
This tissue contains thousands of large spaces that fill with blood when the man is sexually aroused. In front of the urethra they are connected by an isthmus of fibromuscular tissue devoid of glands.
Semen, which contains sperm reproductive cellsis expelled ejaculated through the end of the penis when the man reaches sexual climax orgasm.
The corpus luteum secretes the hormone progesterone. There are some scattered hairs and sebaceous glands on its surface. This is the loose pouch-like sac of skin that hangs behind and below the penis.
Spermatozoa sperm leaving the tubules are not capable of independent motion, but they undergo a further maturation process in the ducts of the male reproductive tract; the process may be continued when, after ejaculation, they pass through the female tract.
It is continuous with the corpus spongiosum. The major reproductive organs of the male can be grouped into three categories.
Beneath the dartos muscle are layers of fascia continuous with those forming the coverings of each of the two spermatic cords, which suspend the testes within the scrotum and contain each ductus deferens, the testicular blood and lymph vessels, the artery to the cremaster muscle which draws the testes upwardthe artery to each ductus deferens, the genital branch of the genitofemoral nerve, and the testicular network of nerves.
Beside the uterus on each side and near the opening of the Fallopian tubes are the small, oval ovaries. Testosterone stimulates the male accessory sex glands prostate, seminal vesicles and also brings about the development of male secondary sex characteristics at puberty.
The human female reproductive system contains three main parts: Premenstrual syndrome PMS includes both physical and emotional symptoms that many girls and women get right before their periods, such as acne, bloating, fatigue, backaches, sore breasts, headaches, constipation, diarrhea, food cravings, depression, irritability, or difficulty concentrating or handling stress.
A female's internal reproductive organs are the vagina, uterus, fallopian tubes, and ovaries. The vagina is a muscular, hollow tube that extends from the vaginal opening to the uterus. The vagina is about 3 to 5 inches (8 to 12 centimeters) long in a grown woman.
The female reproductive system enables a woman to: produce eggs (ova) have. Human reproductive system, organ system by which humans reproduce and bear live offspring. Provided all organs are present, normally constructed, and functioning properly, the essential features of human reproduction are (1) liberation of an ovum, or egg, at a specific time in the reproductive cycle, (2) internal fertilization of the ovum by spermatozoa, or sperm cells, (3) transport of the.
The male reproductive system is a series of organs located outside the body and around the pelvis region of a male that contribute towards the reproduction process. The primary direct function of the male reproductive system is to provide the male sperm for fertilization of the ovum.
The reproductive system or genital system is a system of sex organs within an organism which work together for the purpose of sexual reproduction.
Many non-living substances such as fluids, hormones, and pheromones are also important accessories to the reproductive system. The organs involved in producing offspring. In women, this system includes the ovaries, the fallopian tubes, the uterus, the cervix, and the vagina.
In men, it includes the prostate, the testes, and the penis. The female reproductive system is made up of internal organs and external structures. Its function is to enable reproduction of the species. Sexual maturation is the process that this system undergoes in order to carry out its role in the process of pregnancy and birth.The reproductive system