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Unit 2 Key Area 2 Hormonal Control of reproduction word bank
Unit 2 Key Area 2 Hormonal Control of reproduction word bank cards
19
Anatomy
Intermediate
06/01/2017

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Term
Hormone
Definition
A chemical produced at one site and has an effect at another site
Term
Hormones are produced
Definition
by endocrine glands
Term
Hormones control
Definition
the onset of puberty, sperm production and the menstrual cycle
Term
The pituitary gland produces
Definition
Follicle stimulating hormone, interstitial cell stimulating hormone and luteinising hormone
Term
FSH at the testes
Definition
promotes sperm production in the seminiferous tubles
Term
ICSH at the testes
Definition
stimulates the interstitial cells to produce testosterone
Term
Testosterone stimulates
Definition
sperm production in the seminiferous tubules and activates the prostate gland and seminal vesicles
Term
High concentration of testosterone
Definition
inhibits the secretion of FSH and ICSH by the pituitary
Term
FSH at the ovaries
Definition
stimulates the development and maturation of each follicle and the secretion of oestrogen by the ovary tissue
Term
LH at the ovaries
Definition
triggers ovulation and the development of the corpus luteum from the follicle
which in turn, secretes progesterone
Term
When the ovary wall secretes oestrogen it
Definition
stimulates cell division of the endometrium, repair of the endometrium and stimulates the pituitary to secrete LH
Term
The corpus luteum secretes progesterone which
Definition
promotes development and vascularisation of the endometrium and inhibits secretion of FSH and LH by the pituitary
Term
The menstrual cycle lasts for
Definition
28 days
Term
High concentrations of Oestrogen trigger
Definition
production of LH and FSH by the pituitary gland at approx “day 14” of the menstrual cycle
Term
High concentrations of LH
Definition
around day 14 causes ovulation to occur
Term
The Follicular Phase is the
Definition
first half of the menstruation cycle
Term
The Luteal Phase
Definition
is the second half of the menstruation cycle
Term
High levels of oestrogen and progesterone during the luteal phase
Definition
inhibit the pituitary gland, so concentrations of FSH and LH drop and no new follicle develops at this time
Term
If fertilisation does not occur
Definition
low levels of LH leads to degeneration of the corpus luteum. Oestrogen and progesterone levels also rapidly drop.
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