True or false: Genes on the Y Chromosome iniate testes differentiation.
True or false: All eggs have one X.
XO occurs in about 1/6000 births, small reproductive system, normal intellect.
YXX in about 1/1500 births, normal male geneitals, feminized elsewhere.
Defective gene on X renders tissues insensitive to male horomones, have
XY chromosomes and testes internally, but external genitals of female.Androgen insensitivity syndrome
Androgen insensitivity syndrome
Deficiency of an enzyme that converts one hormone into another form, regular testosterone causes develeopment of tests and internal dectwork of males, lack of the stronger form caused external genitals to form female, presence of more testesterone during puberty causes growth of penis.
One testes, one ovary.
Production of egg and production of hormones estrogen and progesterone.
Carries egg to uterus, egg is usually fertized here
Egg implants in fallopian tube or outside of uterus
Site of embryo implantation, smooth muscles around edges contract during delivery.
Isolate uterus during pregnancy, vaginal cana.
Produced in hypothalamus
Triggers ovulation, and activates structure called the corpus luteum
Causes follical (egg) to mature
Releases estrogen and progesterone
Helps egg mature, and thickens endometrium of uterus in preparation for implantation.
Fursther prepares uterus for implantation of embryo.
Sequence of events that lead to ovulation, regulated by LH and FSH
Known as mensrual cycle, 28 days long, and regulated by estrogen and proesterone.
Produced by embryo to maintain progesterone levels and prevents mentruation, also can be detected in pregnancy tests.
Nutrient exchange between mom and child, large surface area for exchange.
Stimulation of receptors in the glans penis and signals from the brain to induce a reflex reaction resulting in erection.
Intense arousal and increased breathing, heart rate, blood pressure, and muscle tension.
Sympathetic nerve impulses cause contraction of smooth muscles in the epididymis, glands moving semen into the urthera.
Skeletal muscle at the base of the penis contracts rhymically to force semen 2-5 ml through urethra in several spurts
Body returns to normal
Can be sexual or asexual, always involves copying of genetic material, always involves the division of cells.
Most important structures in the reproductive system (ovaries or testes) and its function is to produce the gametes (eggs and sperm) and sex hormones.
Site of sperm production in testes.
Site where sperm are stored and mature
Tubes carries sperm to prostate gland
Neutralizes acids and improves sperm production
Designed to pick up or respond to a variety of stimuli (Pressure, chemical, light)
Touch, pressure, hearing
Change in temperature
Pain felt at a site other than the area of origin
Cannot discriminate between colors, black and white vision, poor resolution, allows us to see in dimly lit room.