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Chapeter 44
Human Reproduction and Development
28
Biology
12th Grade
05/03/2011

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Term
testes
Definition
sperm, sex hormone production
Term
puberty
Definition
the post-embryonic stage in humans when gametes start to mature
Term
testosterone
Definition
a sex hormone necessary for the development and functioning of the male reproductive system of vertebrates
Term
LH
Definition
a hormone in the reproductive frunction of male and female mammals
Term
FSH
Definition
hormone with reproductive role in both sexes
Term
ovaries
Definition
a female gonad
Term
uterus
Definition
organ in which embryos are housed and nurtured during pregnancy
Term
endometrium
Definition
inner lining of the uterus
Term
menstrual cycle
Definition
recurring cycle in adult human females and some other primates
Term
ovulation
Definition
release of a secondary oocyte from an ovary
Term
corpus luteum
Definition
a glandular structure that forms from cells of a ruptured follicle after ovulation
Term
secondary oocyte
Definition
the cell released from the ovary of a female vertebrate at ovulation
Term
polar bodies
Definition
one of four cells that form by meiotic cell division of an oocyte but does not become an ovum
Term
estrogens
Definition
a female sex hormone
Term
progesterone
Definition
one of the sex hormones
Term
ovum
Definition
mature secondary oocyte
Term
fetus
Definition
the stage after all major organ systems have formed until time of birth
Term
implantation
Definition
a process in pregnancy
Term
amnion
Definition
cushioning sac in which the embryo develops
Term
yolk sac
Definition
holds nutritive yolk
Term
chorion
Definition
becomes part of the placenta
Term
allantois
Definition
one of four extraembryonic membranes of amniote eggs
Term
placenta
Definition
lets a mother exchange substances with a fetus but keeps their blood circulation seperate
Term
oxytocin
Definition
hormone in roles of labor, lactation, and recovery of uterus after pregnancy
Term
positive feedback mechanism
Definition
major form of homeostatic control
Term
cortisol
Definition
a hormone that helps maintain the blood level of glucose between meals
Term
lactation
Definition
milk production and secretion by hormone-primed mammary glands
Term
prolactin
Definition
hormone that induces synthesis of enzymes used in milk production
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