The lining of the uterus, called the endometriumand unfertilized ova are shed each cycle through the process of menstruation. Ectopic Pregnancy An ectopic pregnancy is when a fertilized egg becomes implanted outside the uterus, most often in the fallopian tubes.
This arrangement indicates the bilateral origin of the scrotum from two genital swellings that lie one on each side of the base of the phallus, the precursor of the penis or clitoris in the embryo. 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.
Ovulation and menstruation become irregular and finally cease. Approximately every 28 daysthe pituitary gland releases a hormone that stimulates some of the ova to develop and grow.
There are three clinically significant concentric zones of prostatic glandular tissue about the urethra. The ductules are straight at first but become dilated and then much convoluted to form distinct compartments within the head of the epididymis.
More details of the process of fertilization are presented at this link. Gonadal function after Gy testicular irradiation in childhood acute lymphoblastic leukaemia. Clin Endocrinol Oxf Nov;19 5: Essentially, each vesicle consists of a much-coiled tube with numerous diverticula or outpouches that extend from the main tube, the whole being held together by connective tissue.
Am J Obstet Gynecol. The vagina is attached to the uterus through the cervixwhile the uterus is attached to the ovaries via the Fallopian tubes.
The oval bulb of the penis lies between the two crura and is covered by the bulbospongiosus muscle. However, the controversies surrounding abortion in the United States kept it from being authorized for use here until September The urethra enters it on the flattened deep aspect that lies against the perineal membrane, traverses its substances, and continues into the corpus spongiosum.
If the egg does not embed in the wall of the uterus, a female begins menstruation. After about two weeks, there is a sudden surge in the production of LH. Each ovary contains hundreds of egg cells or ova singular ovum.
When the spermatozoon is fully mature, it is propelled by the lashing movements of the tail. 2 • This lecture is a clinically and scientifically frank ADULT discussion about the human reproductive system with ADULT students who are studying to go into.
The reproductive system is comprised of male and female reproductive organs and structures. The growth and activity of these organs and structures are regulated by hormones. The reproductive system is closely associated with other organ systems, particularly the endocrine system and urinary system.
Human reproductive system, organ system by which humans reproduce and bear live offspring.
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Reproductive system definition is - the system of organs and parts which function in reproduction consisting in the male especially of the testes, penis, seminal vesicles, prostate, and urethra and in the female especially of the ovaries, fallopian tubes, uterus, vagina, and vulva.
Abstract. Irradiation may have a profound effect on reproductive function. The schedule of the delivered irradiation (total dose, number of fractions, and duration) is an important determinant of the radiobiological effect on the tissues involved and varies among different tissues and organs.Human reproductive sysytem