Human Reproductive System

Male; organ used for reproduction + urination

Male; whitish fluid secreted during ejaculation

Male; Sac of skin + muscle below penis, houses the testes

Male; Tube that transports mature sperm to ejaculatory duct

Male; long, coiled tube that stores + transports sperm

Male; accessory glands that produce fluid + nourishment for sperm

Male; primary glands that produce sperm + male sex hormones

Male; reproductive cells, carry paternal DNA to egg

Both; s-shaped tube that transports urine + semen (in males)

Female; protective gateway for reproductive tract in uterus

Female; ducts in pelvis, transport ovulated egg towards the uterus (sperm fertilization, nurture embryo)

Female; Organ that houses, protects, and nourishes developing fetus in pregnancy

Female; muscular canal, connects outer female genitals to neck of womb

Female; Store + release eggs, produce essential hormones (estrogen + progesterone)

Both; end opening of gastrointestinal tract, exit point for solid waste

Both; hollow organ in pelvis, stores urine

Male; produces fluid for semen

Menstrual cycle controlled by hormonal feedback loop

Hypothalamus, pituitary gland, ovaries

Target cells that have matching receptors respond to specific hormones. If the target cell has the correct receptor that fits with the hormone, the cell is affected. If it doesn’t fit, there is no response.

FSH, Estrogen, LH, Progesterone

FSH - Pituitary, Estrogen - follicle (ovary), LH - pituitary, Progesterone - corpus luteum (ovary)

FSH - simulates the growth of a group of follicles (contains an egg cell) Estrogen - stimulates rebuilding of uterus wall LH - stimulates follicle to burst + release the ovum Progesterone - completes development of uterus wall, promotes glycogen storage

The pituitary gland begins to release the hormones LH and FSH. With these hormones released, FSH promotes the growth of follicles in the ovaries. The growing follicle release estrogen, which causes the pituitary gland to stop releasing FSH and produce more LH. The rise in LH causes ovulation, where the most mature egg cell is released into the fallopian tubes. Empty follicles transform into corpus luteum, which make progesterone - causing the uterine lining to thicken with blood and nutrients. If no fertilized egg embeds, levels of estrogen and progesterone drop. The lining of the womb begins to degenerate and it is then shed, leaving the body and forming the menstrual period.