Flashcards in Ch. 4 Deck (11):
What 3 hormones do the ovaries produce?
Androgen, Estrogen, & progesterone
What does the hormone progesterone do?
It regulates the menstrual cycle and prepares the uterus for pregnancy.
What is a hermaphrodite?
Someone born with ovarian & testicular tissue.
- Can happen in XX, XY, or XXY
When someone is born exhibiting both male and female external genitals.
- Part of the transgendered community
1/2,500 female births. Ovum without any sex chromosome
- typical external genitalia, but ovaries do not develop.
- ovaries do not produce steriod hormones..causing amenorrhea infertility.
1/600 male births. Ovum contains extra X chromosome resulting in XXY. These men are infertile, tall w. feminized contours, have small testicles, low testosterone.
"Super Males" - may be sterile...thought to be more aggressive (not true).
Triple X Syndrome:
May cause slight mental retardation & fertility problems.
Adrenogenital Syndrome (AGS) or Cogenital Adrenal Hyperplasia (CAH)
1/5,000 - 1/15,000 births. Genetic female (XX), exposed to large amounts of androgen during prenatal development due to low cortisol levels.
- Internal organs remain female, but external organs may appear masculinized.
5 alpha reductase syndrome:
genital folds fuse to form the scrotum during male development in utero.
- DHT is critical for genital fusing
- males that lack this undergo incomplete differentiation of external genitalia
-These males are raised as girls until they reach puberty.