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46 Cards in this Set

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produces gastrin hormone which signals gastric glands to produce HCl, pepsin, and mucus upon eating
stomach
allows glucose to enter cells and converts excess glucose into starch called glycogen
insulin
regulates metabolism of fats and glucose
cortisol
readies body for "fight or flight" response
epinephrine
norepinephrine
muscle development, lower voice, beard growth
testosterone
breast development, rounder features, 28 day menstrual cycle
estrogen
progesterone
"the" hormone of pregnancy
placenta
pregnant woman
chorionicgonadotropin
stimulates corpus luteum to produce progesterone
how is hormone production regulated?
hormone output is regulated by negative feedback
hypo-function (not enough growth hormone)
dwarfism
too much hormone while person's growth zones are present
gigantism
too much somatotropin after growth zones have dissapeared
acromegaly
hyperfunction (hyperthyroidism)symptoms
never tired
no weight gain
hot to the touch
exophthalmia- bulging eyes
hypofunction (hypothyroid symptoms)
always tired
easy weight gain
cold to the touch
enlarged thyroid-goiter
diabetes mellitus symptoms
high blood sugar levels
organs and tissues starved for glucose
frequent urination and thirst
blurred vision
tired
production of sperm
spermatogenesis
oogenesis (production of eggs) produce:
2 ovum and 6 polar bodies
spermatogenesis (production of sperm) produce:
8 sperm total
28 day cycle (no pregnancy)
Day 5
anterior lobe of pituitary gland releases follicle stimulating hormone (FSH)
causes all 440,000 primary oocytes to begin a developmental race
causes all primary follicles to produce estrogens
FSH
High levels of estrogens feedback negatively on the pituitary which results in FSH being shut off
Day 12
No pregnancy
falling levels of FSH and estrogens trigger pituitary to release lutenizing hormone (LH)
day 14
no pregnancy
yellow scar that forms at site of ovulation
corpus luteum
pituitary is producing high levels of LH which is causing the corpus luteum to produce high levels of progesterone. feedback negatively and stop producing LH
day 21
no pregnancy
falling levels of LH and progesterone cause a reduction of blood flow to the endometrium. without adequate O2 and glucose, the endometrium dies=necrotic endometrium
day 28
no pregnancy
necrotic endometrium and blood are released from body as menstrual flow
day 1-5
no pregnancy
ovulation, formation of corpus luteum, corpus luteum produces progesterone
day 14
with pregnancy
human males produce:
60 million sperm per cc of ejaculate
avg ejaculate
4cc
avg sperm count upon ejaculation:
240,000
infertile if male has less than:
20 million sperm per cc
pregnancy tests
test for presence of chorionic gonadotropin
zygote implants at a site other than the endometrium of the uterus
ectopic pregnancy
gland fluid+sperm only=
semen
4 kinds of taste buds:
sweet
sour
bitter
salt
taste buds located on:
tongue, hard palate, soft palate, pharynx
sense of smell
olfaction
retina contains:
photoreceptors (rods and cones)
found on entire retina except fovea
black and white vision
work well in dim to bright light
rods
found only in fovea
color vision
med to bright light
cones
area of sharpest vision but contains only cones
fovea centralis
regulates amount of light that enters the eye
iris
nearsighted caused by an eyeball that is too long
myopia
far sighted, can see things far away but close images are blurred, caused by an eyeball that is too short
hypermetropia
far sighted, results from your lens losing elasicity, can't change shape to focus image if object is close to eye
presbyopia