18.11 ovaries and testes Flashcards
what are gonads
the organs that produce gametes - sperm in males and oocytes in females
paired oval bodies located in the pelvic cavity ?
ovaries
what hormones do the ovaries produce?
several steroid hormones including 2 estrogens (estradiol and estrone) and progesterone
estrogen and progesterone along with what 2 hormones anterior pituitary regulate the menstrual cycle, maintain pregnancy and prepare mammary glands for lactation?
follicle-stimulating hormone (FSH)
luteninzing hormone (LH)
the ovaries also produce what protein hormone that inhibits secretion of FSH
inhibin
during pregnancy the ovaries and placenta produce a peptide hormone called relaxin (RLX) which does what?
increases flexibility of the pubic symphysis during pregnancy and helps dilate the uterine cervix during labor and delivery
the male gonads are called?
testes - lie in the scrotom
what are the main hormones produced and secreted by the testes
testosterone and androgen (or male sex hormone)
what hormone do the testes produce?
inhibin - which inhibits the secretion of FSH from anterior pituitary