reproductive and urinary systems

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  • Created by: anna888
  • Created on: 17-01-23 19:13
what is primary male adrogen, where is it synthesised and describe peaks
testosterone, leydig cells of testes, peaks in pubirty, declines in old age
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name a weaker androgen, where is it producd
DHEA, adrenal cortex
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describe syntheisi of testosterone in males
cholestrol- progesterone- testosterone- DHT (active form). testerone to dht uses 5 alpha reductase enzyme
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describe testosterone syntheisi and use in females
holesterol-proesterogen-testoserone- estradiol ( active form). testosterone to estradiol uses aromatase. produces pubic hair
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describe ole of testosterone in males
enargement of laryanx and strenghting of vocal chords, increases body hair, thickens skin and bones, grows muscles
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describe androgen receptor
DHT binds with AR. complex migrates to nucleus and binds with ARE (allows male gene phenotype expression). heat shock protien released
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describe male sex hormone release and functions
GnRH released from hypothalmus, LH and FHS released from anterior lobe of pituatry gland, casues sex hormones to be released. secondary sex characterics and sperm cell production
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difference in f/m sex hormone release
both LH and FSH cause gamete production- only FSH in males
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where are female sex hormones and germ cells released from
the ovary
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what is ovulation, when does this happen
maturation ofovary follile, day 14-end follicular phase
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what is phase after ovulation- what happens
leutical phase- corpus lumen form and degrades until new cycle and next follicular phase
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what hormones are high during ovulation, what does this mean
LH and estrogen- supports egg maturation
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what hormones are high when the corpus lumen is formed?
proestrogen
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describe mensturation- what are the hormone levels
breakdown of uterine lining as the eggs was unused. start of follicular phase. estrogen levels low. preps for new cycle
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name two ovarian steriod hormones
estrogens and proesterogens
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describe estrogens and the different forms
relased from granulosa cells of mature tertiary folicles. E2 is main form. E1 is high in menopause. E3 is high in pregnancy
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describe the work of the estrogen receptor (ER)
estrogen - er complex binds to dna hormone response lements and allows target gene transcription
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what are estrogen effects (6)
matures germ cells, protects heart from cholesterol, provison of hormonal influences for lactation and mestral cycle timing, prevents osteoprosis, develops reprodutive systme and secondary sex characterics
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describe menopause and its effects
ovaries fail to respond to fsh so folicle levels drop.increased lh and fsh to compesnate so hot flushes. dropped estrogen means less oestroprerosis protection
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male vs female bladder differnecs , what are the consequences
male has internal sphincter, female has external. females more prone to uti's.
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what is role of sphincter
allows urethra to open and close to empty bladder
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what is mictrication, from where is it facilated and where is it inhibited
process is which urine is relased from bladder. faciliated- pons, posterior , hypothalmus. inhibited- mid brain
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describe the three nerve supply to the bladder and type of stimulation
1. hypogastric nerves- sympathetic 2. pelvic nerves- parasympathetic 3.pudenal nerves- sensory ( can be controlled)
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name a weaker androgen, where is it producd

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DHEA, adrenal cortex

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describe syntheisi of testosterone in males

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Card 4

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describe testosterone syntheisi and use in females

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Card 5

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describe ole of testosterone in males

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