Ovaries- located at hip level; size and shape of almond.
-attatched to uterus by ligaments.
-holds eggs, ovum-one egg; ova-more than one egg,
Each ovum contains 23 chromosomes, DNA in the nucleus. At birth has 400,000 undeveloped (unripened) eggs; about 500 eggs mature
and leave. One egg at a time matures and leaves an ovary; the ovaries take turns inovulation so that one month will come from
one ovary and the next month the egg will come from the other ovary. Eggs begin to mature at puberty until menopause.
- also produces
endocrine hormones, progesterone and estrogen for 2ndary sex characteristics.
Fallopian tube- (oviduct) not connected to the ovaries.
-tube that brings the ovum to the uterus, about 4-5days travel.
-lined with cilia(tiny hairs) that creates current
to sweep ovum towards the uterus.
-usually where the sperm meets and fertilizes the egg.
(womb) size and shape of pear.
-has thick muscular walls so it can expand for a growing baby.
-walls lined with endometrium that thickens each
month with blood to prepare for fertilized egg. If a fertilized egg, zygote, appears it inbeds itself into the lining of the
uterus. If no fertilized egg appears then the egg and lining of the uterus shed, menstration.
-cervix- neck or opening of the uterus, contains
mucous that kills bacteria.
Vagina- (birth canal) muscular tube that leads outside of
sperm during intercourse.
folds for protection of the female reproductive system.
2. Clitoris- sensitive projection of tissue in front of the urethral opening
between the labia folds.
3. Hymen- thin membrane circling opening of vagina.
4. Urethral opening- opening from the urinary system from the bladder.
In front of the vaginal opening.
Cycle- avg. 28 days (varies by hormones ) (also irregular at beginning-puberty)
-maturation of egg (ovum)
-phase 1: menstral flow-release of blood tissue
and unfertilized egg. lasts about 5 days.
-phase 2: hormones sent out, thickening of uterus occurs. One egg matures and released,ovulation, avg. day 14.
-pregnancy if egg is fertilized by sperm within
48 hrs of ovulation.
-phase 3: uterus
wall continues to thicken. if fertilized egg-nourished in lining of uterus. if unfertilized egg- hormones decrease and lining
*Endocrine hormones begin menstration avg. age
10-14 (can vary) ovaries begin to mature and release eggs. When hormones decrease avg. age 50-60 (can vary) ovaries stop releasing
*PMS- premenstral syndrome- last 7-10 days of cycle, just before menstration
occurs. Some state real and others refute it. Stated conditions of cramping, headaches, breast tenderness and fluid retention.
Cause is unknown, some guess hormonl changes.