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HHB 2.2 RR Quiz Qs
RR Qs
24
Biology
Not Applicable
03/29/2022

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Term
What does the hypothalamus produce to trigger the onset of puberty?
Definition
releaser hormone
Term
What is the target tissue for the releaser hormone secreted by the hypothalamus?
Definition
pituitary gland
Term
Name the two hormones produced by the pituitary hormone in males?
Definition
FSH & ICSH
Term
Name the two hormones produced by the pituitary hormone in females?
Definition
FSH & LH
Term
State the target and effect of FSH in males.
Definition
promotes sperm production in the seminiferous tubules of the testes
Term
State the target and effect of FSH in females.
Definition
follicle, stimulates the development and maturation of a follicle and the production of oestrogen
Term
State the target and effect of ICSH in males.
Definition
stimulates the interstitial cells in the testes to produce the male sex hormone testosterone
Term
State the targets and effect of testosterone.
Definition
stimulates sperm production in the seminiferous tubules & activates the secretion of fluids by the prostate gland and seminal vesicles
Term
What is the effect of high levels of testosterone on the pituitary gland?
Definition
inhibits the release of FSH and ICSH
Term
What is the name of the ability of testosterone to control its production?
Definition
negative feedback control
Term
Name the two phases of the menstrual cycle.
Definition
follicular and luteal
Term
What effect does oestrogen have on the endometrium?
Definition
stimulates proliferation
Term
What effect does oestrogen have on the cervical mucus?
Definition
thins it
Term
What effect does a high level of oestrogen have on the pituitary gland?
Definition
stimulates the release of LH
Term
What event in the menstrual cycle is triggered by the surge of LH?
Definition
ovulation
Term
What effect does LH have on the follicle?
Definition
stimulates it to change into a corpus luteum
Term
Which hormone is secreted by the corpus luteum?
Definition
progesterone
Term
What effect does progesterone have on the cervical mucus?
Definition
thickens it
Term
What effect does a high level of progesterone have on the pituitary gland?
Definition
inhibits the production of LH ans FSH
Term
What effect does progesterone have on the endometrium?
Definition
causes further thickening / vascularisation
Term
How many days does one menstrual cycle typically last ?
Definition
28 days
Term
What event marks day one of the menstrual cycle?
Definition
the first day of mentruation
Term
When in the menstrual cycle does ovulation typically occur?
Definition
half way
Term
What causes the endometrium to break down at the end of the menstrual cycle?
Definition
falling progesterone levels
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