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46 Cards in this Set
- Front
- Back
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produces gastrin hormone which signals gastric glands to produce HCl, pepsin, and mucus upon eating
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stomach
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allows glucose to enter cells and converts excess glucose into starch called glycogen
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insulin
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regulates metabolism of fats and glucose
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cortisol
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readies body for "fight or flight" response
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epinephrine
norepinephrine |
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muscle development, lower voice, beard growth
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testosterone
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breast development, rounder features, 28 day menstrual cycle
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estrogen
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progesterone
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"the" hormone of pregnancy
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placenta
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pregnant woman
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chorionicgonadotropin
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stimulates corpus luteum to produce progesterone
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how is hormone production regulated?
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hormone output is regulated by negative feedback
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hypo-function (not enough growth hormone)
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dwarfism
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too much hormone while person's growth zones are present
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gigantism
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too much somatotropin after growth zones have dissapeared
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acromegaly
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hyperfunction (hyperthyroidism)symptoms
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never tired
no weight gain hot to the touch exophthalmia- bulging eyes |
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hypofunction (hypothyroid symptoms)
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always tired
easy weight gain cold to the touch enlarged thyroid-goiter |
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diabetes mellitus symptoms
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high blood sugar levels
organs and tissues starved for glucose frequent urination and thirst blurred vision tired |
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production of sperm
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spermatogenesis
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oogenesis (production of eggs) produce:
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2 ovum and 6 polar bodies
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spermatogenesis (production of sperm) produce:
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8 sperm total
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28 day cycle (no pregnancy)
Day 5 |
anterior lobe of pituitary gland releases follicle stimulating hormone (FSH)
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causes all 440,000 primary oocytes to begin a developmental race
causes all primary follicles to produce estrogens |
FSH
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High levels of estrogens feedback negatively on the pituitary which results in FSH being shut off
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Day 12
No pregnancy |
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falling levels of FSH and estrogens trigger pituitary to release lutenizing hormone (LH)
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day 14
no pregnancy |
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yellow scar that forms at site of ovulation
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corpus luteum
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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
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day 21
no pregnancy |
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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
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day 28
no pregnancy |
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necrotic endometrium and blood are released from body as menstrual flow
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day 1-5
no pregnancy |
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ovulation, formation of corpus luteum, corpus luteum produces progesterone
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day 14
with pregnancy |
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human males produce:
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60 million sperm per cc of ejaculate
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avg ejaculate
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4cc
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avg sperm count upon ejaculation:
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240,000
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infertile if male has less than:
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20 million sperm per cc
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pregnancy tests
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test for presence of chorionic gonadotropin
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zygote implants at a site other than the endometrium of the uterus
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ectopic pregnancy
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gland fluid+sperm only=
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semen
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4 kinds of taste buds:
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sweet
sour bitter salt |
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taste buds located on:
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tongue, hard palate, soft palate, pharynx
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sense of smell
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olfaction
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retina contains:
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photoreceptors (rods and cones)
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found on entire retina except fovea
black and white vision work well in dim to bright light |
rods
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found only in fovea
color vision med to bright light |
cones
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area of sharpest vision but contains only cones
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fovea centralis
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regulates amount of light that enters the eye
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iris
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nearsighted caused by an eyeball that is too long
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myopia
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far sighted, can see things far away but close images are blurred, caused by an eyeball that is too short
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hypermetropia
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far sighted, results from your lens losing elasicity, can't change shape to focus image if object is close to eye
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presbyopia
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