MA+Reproduction+Notes

Reproductive System:


 * Male Hormone**: testosterone which is found in the testes which is in the scrotum. Testes cells have testosterone receptors. The male starts making testosterone during puberty. Male keeps making testosterone until he dies. The signal is to make sperm. That signal is a daily signal.


 * Female Hormone**: Estrogen is found in the ovaries. Ovaries also have estrogen receptors. Estrogen matures the eggs. Estrogen not made until puberty and stops making it during menopause. Takes two weeks for egg to mature and be released. Two weeks out of every menstrual cycle estrogen in released. Projesterone is made in the ovaries in the empty egg sack. Made from puberty until menopause. Estrogen is the first two weeks of the cycle and projesterone is released the last two weeks of the menstrual cycle. Pejesterone receptors are found in the uterus and keeps the lining of the uterus thick.


 * Mail Reproductive Organs:** Sperm pathway: Testes(where sperm is made)--> eppididimus(sperm training/where they learn how to swim)-->vasdeferins-->urethra


 * Female Reproductive Organs:** Sperm pathway: Vagina-->cervix-->uterus-->falopian tubes

3.26.06 Menstrual Cycle

The cycle is about 28 days but it varies female to female. Days 1-7: Day one is first day of menstruation.

Menstrual Cycle: ( a little incomplete b/c my computer was messing up during the ntoes) Days 1-7 Menstruation…this occurs 3-7 days 8-14: Walls thicken and egg drops…this is when you can get pregnant…ovulate on day 14. One egg is released during ovulation.

Days 15-28 Body is waiting to see if you fertilized an egg.

Hormones: F SH =Is made in the brain: pirtuitary gland…Levels of FSH stay the same until it peaks right before ovulation. Respoonsible for the egg to start developing. The receptors for this hormone is in the ovary. E strogen=is made in the ovaries(alternates in one ovary to the other each cycle). It increases until right before ovulation and then drops and then increases again. As the egg matures in the ovaries estrogen is being made by the egg in the ovary. L H=Made in the brain (pirtuitary gland)…It is constant and then peaks right before ovulation…the FSH peak is before the LH peak. Estrogen tells the brain to release LH and LH tells the body to ovulate. O vulation=release of the egg from ovary…what’s left behind in the ovary is an empty egg sac and it makes progesterone. P rogesterone—stays constant then peaks after ovulation