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Mammalian Test 3
Mammalian Physiology AU Test 3
16
Biology
Undergraduate 4
04/02/2010

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Term
Preformed Water
Definition
1000 mL- water found in different food stuffs found in differing amounts
Term
Metabolic Water
Definition
350 mL-Water derived from food metabolized; oxidizing glucose yields CO2 and H2O and some energy
Term
Fluids
Definition
fluids consumed containing water
Term
Regulation of Water Intake
Definition
Osmoreceptors, Volume receptors, Renin-Angiotensin System, Mouth and Oral Metering
Term
Podocyte
Definition
processes that protrude thru them and form final barrier for things passing from glomerulus to Bowman's Capsule
Term
Basement Membrane
Definition
has a lot of negative charges associated with it so that it repels proteins so it doesn't filter plasma proteins!
Term
Nephritis
Definition
damages were caused that allow proteins to flow through
Term
Net Filtration Pressure
Definition
pressure caused by the influence of the glomerular BP, BC pressure and osmotic pressure of the plasma proteins
Term
Atrial naturitic peptide functions
Definition
Causes vasodilation of the afferent arteriole, inhibits Renin secretion, inhibits Aldosterone secretion, directly inhibits Na+ and Cl- resorption in the tubule inhibits ADH secretion, causes relaxation of the Mesangial Cells
Term
Macula densa
Definition
acts as a quality control station that monitors the quality and quantity of the filtrate and in doing so makes an interpretation that ultimately affects the GFR. Monitors filtrate because it is assessing the GFR. takes “snapshot” of Na+ and/or Cl-. If GFR too low, it makes slows the flow so more time for Na+ and Cl- to be removed from tubular to peritubular capillary network (vascular).
Term
alkalosis
Definition
become very excitable. Tingling in extremities and tetanic contractions which may affect diaphragm, and then death. Due to low calcium concentrations.
Term
acidosis
Definition
becomes progressively less alert with hypoactive state. They will go into coma and die due to high amounts of ionic calcium (among other things). This makes it way difficult to generate action potentials.
Term
Bicarbonate
Definition
most important of extracellular buffer systems
Term
Phosphate
Definition
significant buffer in the kidney
Term
Respiratory acidosis causes
Definition
An obstruction
Pneumonia
Emphysema
Asthma
Compromised respiratory muscle (diaphragm, etc).
Term
Respiratory alkalosis cause
Definition
Most commonly due to people who are hyperventilating, due to some anxiety reaction, etc. Sometimes can occur in high altitutes or in astric poisoning
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