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Reproductive System
Lab XI
32
Anatomy
Undergraduate 2
04/26/2012

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Cards

Term
What are primary oocytes?
Definition
immature eggs
Term
What is each oocyte surrounded by?
Definition
Follicle (granulosa) cells
Term
What is a primordial follicle?
Definition
oocyte and its follicle cells
Term
What controls the maturation process of oocytes?
Definition
Reproductive hormones, FSH and LH
Term
Where are FSH and LH secreted?
Definition
in the anterior pituitary
Term
WHat is FSH?
Definition
follicle-stimulating hormone
Term
What is LH?
Definition
Luteinizing Hormone
Term
What kind of molecules does the oocyte accumulate as it matures?
Definition
energy-storing, building, organelles
Term
What are teh energy-storing molecules accumulated of teh maturing oocyte?
Definition
proteins and lipids
Term
What are the build molecules accumulated?
Definition
proteins and m-RNA
Term
What are the cell organelles accumulated?
Definition
Ribosomes and mitochondria
Term
What are the accumulated molecules needed for?
Definition
early stages of embryonic development
Term
What happens simultaneously as the oocyte accumulates molecules?
Definition
Follicle cells around it divide frequently
Term
What happens as a result of the follicles dividing frequently?
Definition
Rapid increasing in their number and increasing the diameter of the follicles
Term
What are teh growing follicles called?
Definition
Primary follicles
Term
What are the fluid filled cavities primary follicles develop called?
Definition
antrums
Term
What are primary follicles called after developing an antrum?
Definition
secondary follicles
Term
What happens to the follicle of the oocyte completing the maturation process?
Definition
Termed a mature follicle
Term
What is characteristic of a mature follicle?
Definition
A huge antrum that makes it protrude a little from the surface of the ovary
Term
What happens a day or two after complete maturation of the oocyte?
Definition
Follicle gently bursts and oocyte is propelled out of the ovary
Term
What is ovulation?
Definition
Rupture of a follicle and the propulsion of the oocyte out of the ovary
Term
What happens after the follicle bursts?
Definition
Oocyte is swept into the fallopian tube
Term
What sweeps the oocyte into the fallopian tube?
Definition
finger-like fimbriae
Term
What happens to the empty follicle?
Definition
Heal to form a new structure
Term
What does the empty follicle heal into?
Definition
a corpus luteum
Term
What happens to the follicle cells after forming a corpus luteum?
Definition
Cells expand greatly and being producing increase levels of reproductive hormones, estrogen and progesterone
Term
What happens to the corpus luteum of the oocyte is fertilized?
Definition
persist through much of the pregnancy
Term
What happens to the corpus luteum if the oocyte is not fertilized?
Definition
it will degenerate towards the end of the menstrual cycle
Term
What does a mature sperm mature from?
Definition
spermatocyte
Term
What is teh shape of a spermatocyte?
Definition
roughly spherical
Term
Where does teh maturation of sperm occur?
Definition
walls of numerous seminiferous tubules that make up the tissue of the testes
Term
What happens after the sperm are mature?
Definition
sperm are released into lumens of the tubules and travel out of the testes
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