Please enable JavaScript.
Coggle requires JavaScript to display documents.
The Kidney and Osmoregulation - Coggle Diagram
The Kidney and Osmoregulation
Excretion
removal of waste product of metabolism from body
metabolic waste
aquatic animals
NH3
mammals
urea + water
reptiles & birds
uric acid
animals
osmoconformers
maintain internal conditions = osmolarity of their environment
minimizes osmotic gradient, minimizes water movement out of cells
eg: invertebrates
osmoregulators
tightly regulate their body osmolarity, always constant
uses energy
more common in animal kingdom
Malpighian tube
removes nitrogenous waste and osmoregulation in insects
Kidney
structure
renal vein
balanced blood (cleaner)
less
urea
oxygen
salts & ions
water & glucose
more
CO2
larger
renal artery
unbalanced blood
cortex
ultrafiltration & selective reabsorbtion
outer layer
medulla
reabsorbs water
inner layer
have nephron
functional units of the kidney
Bowman's Capsule (ultrafiltration)
Proximal CT (selective reabsorbtion)
Loop of Henle
Distal CT(secretion of toxins in urine)
Collecting Ducts (urine to pelvis )
balances water concentration through ADH
water in collecting duct moves to capillaries by osmosis
1 more item...
ADH - controls permeability of CD, stimulates aquaporin channels
generate a high concentration of solutes in tissue fluids compared to medulla
descending loop; permeable to water, non permeable to Na+
ascending loop; unpermeable to water, permeable to Na+
osmotic potential generated between nephron & medulla,
100%glucose, amino acids, vitamins & hormones are reabsorbed, 80% ions & water
high pressure filters out small molecules & water
(due to change in size of atrioles) afferent > efferent
basement membrane allows smaller molecues to be filtered
moleculs in filtrate : water, urea, glucose, salts . others are too big (RBC, PP, platelets)
filtrate is transported to nephron
Hydration
dehydrated
eepy
confused
dry mouth/skin
headache
overhydrated
confused
blurred vision
muscle cramps
nausea
Malfunction
Hemodialysis
purifying blood of person whose kidneys are not working properly
contains semi permeable membrane- allows small particle to diffuse through
Transplant
best long term treatment