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23 Cards in this Set
- Front
- Back
Kidney
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regulate the concentration of H20, salt and other dissolved substance in the blood through the formation and excretion of urine
made of many nephron |
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kidney is made of
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cortex (outer)
medulla (middle) pelvis (inner) |
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nephron is made of ??
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bowman's capsule
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excretory sys pathway
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blood enters the kidney via the renal artery
afferent arterioles (in) glomerulus efferent arteriole renal vein |
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structure of nephron
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glomurus(filteration of large particles like blood cells and albumin"protein")
proximal convoluted tubule desending limb loop of henle assending limb collecting duct |
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reabsorption of glomerulus
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Na Cl H2O and a.a vitamins and glucose
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reabsorption of desending limb
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H2O
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reabsorption of asending limp
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Na and Cl
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reabsorptio nof loop of henle
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Cl and Na
Urea goes in to get filtered again |
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reabsorption of distal convoluted tubule
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H2O
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reabsorption of collecting duct
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H2O
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urine is () to blood
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hypertonic
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desending and asending limb runs through
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from cortex to pelvis
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hormone that controls nephron
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aldoeston
ADH (vasopressin) |
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aldoeston
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from adrenal cortex에서분비
Na 양을 조절 (active reabsorption of Na) |
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ADH (vesopressin
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ADH increase the permability of the collecting duct to water, allowing more water to be absorbed and more concentrated urine to be formed
water reabsorption (inc blood vol.) |
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other execretory organ
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lung
skin liver |
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lung
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eliminate CO2 and H2O
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Skin
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eliminate H2O salt, and urea through sweat also lower body temperature
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liver
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process nitrogenous wastes
Urea is produced by deamination of a.a in the liver and diffuse into the blood for exretion in the kidney |
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protozoans and coelenterates
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all cells are contact w/external aquous environment
Co2 and waste exit by simple diffusion thru cell membrane |
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Annelids (earthwarm)
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CO2 excretion occur directly through the moist skin.
has mephridia in each body segment which excrete H2O and salt and N2 waste in form of urea |
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Arthopods (insects)
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malpigian tubule which uric acid crystal is accumulated then move to intestine
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