Exam 4 Flashcards
Movement of substances from the blood in the glomerulus into the capsular space.
Glomerular filtration
Movement of substances from tubular fluid back into the blood.
Tubular reabsorption:
Movement of substances from the blood into the tubular fluid.
Tubular secretion:
Modified smooth muscle cells around glomerular capillaries:
Mesangial cells. These cells regulate blood flow through the glomerulus by acting like precapillary sphincters.
Bowman’s capsule hydrostatic pressure:
Opposes filtration.
Bowman’s capsule osmotic pressure:
Favors filtration (negligible under normal conditions).
Glomerular capillary hydrostatic pressure
Favors filtration, equal to GC blood pressure.
Glomerular osmotic pressure:
Opposes filtration due to plasma proteins
Movement back into plasma is?
Reabsorption. This process involves the movement of solutes and water back into the plasma from kidney tubules.
Virtual measure of solute removal by kidney:
Clearance
Movement into kidney tubules
Secretion.
Elimination of solutes and water:
Excretion
The countercurrent multiplier in cortical nephrons generate an osmotic gradient that results in reabsorb of water from the tubules producing concentrated urine.
True
False
False
high blood volume due to positive water balance
Correct match:
hypervolemia
low blood volume due to negative water balance
Correct match:
hypovolemia
normal blood volume
normovolemia
Principle cells in the late distal tubules and collecting ducts regulate water and electrolyte balance through hormonal action, while intercalated cell regulate acid-base balance.
True
False
True
decreased CO2 leading to decreased H+ and caused by hyperventilation
Correct match:
respiratory alkalosis
increased CO2 leading to an increase H+ and is caused by hypoventilation
Correct match:
respiratory acidosis
decreased pH due to something other than CO2 (e.g. high protein diet or heavy exercise
Correct match:
metabolic acidosis
increased pH due to something other than CO2 (e.g. excessive vomiting)
Correct match:
metabolic alkalosis
high plasma calcium
Correct match:
hypercalcemia
high plasma potassium
Correct match:
hyperkalemia
low plasma sodium
Correct match:
hyponatremia