Female Repro Histo Flashcards
the ovaries have ____ function as they produce estrogens and progestogens through steroidogenesis
endocrine
promote the growth and maturation of internal and external sex organs; development of the secondary female sex characteristics; promote breast development
estrogens
prepare internal sex organs (primarily uterus) for pregnancy by promoting changes in endometrium; prepare mammary glands for lactation
progestogens
the ovaries have exocrine function as they produce the female gamete (i.e. ovum) through gametogenesis; specifically the ovaries produce and ovulate a _____
secondary oocyte
first month of fetal development; migrate from yolk sac to gonadal primordia; divide (via mitosis) and differentiate to form the next cell (i.e. oogonia)
primordial germ cells
will proliferate (via mitosis), but others also begin, at the beginning of third month, to undergo meiosis; enter the prophase of the first meiotic division and stop (arrest)
oogonia
arrested oogonia at prophase of the first meiotic division
primary oocytes
each primary oocyte (i.e. arrested in prophase of first meiotic division) becomes surrounded by flattened supporting cells called _____, creating what is known as a _____
follicular cells; primordial follicle
by ___ month of development, most oogonia have transformed to primary oocytes
seventh
beginning at the fifth month of fetal life and throughout the woman’s lifetime, primary oocytes undergo a slow degenerative process called ____, defined as spontaneous death and subsequent reabsorption
atresia
only about ____ oocytes are ovulated throughout lifetime, most are lost through atresia
350-400
ovarian follicles are found within the ____ of the ovaries
cortex
an ovarian follicle is composed of an ____ surrounded by one or more layers of ____
oocyte; epithelial cells
ovarian follicles are various sizes- size indicates the ____ of the oocyte
developmental state
3 basic types of ovarian follicles
- primordial follicles
- growing follicles
- mature or Graafian follicles
growing follicles can be ___ or ____ follicles
primary; secondary (antral)
two types of primary follicles
- early or unilaminar primary follicles
2. late or multilayered or multilaminar primary follicles