web-HUMAN
6
Physiology Teaching Simulation
Physiology Teaching Simulation
Sample
use - Physiological Control Systems
Kidney
induced volume retention
Blood volume
expansion due to renal artery induced salt retention.
The renin-angiotensin-aldosterone system in action.
Changes in Key Processes
 Renal
BP falls |
Perhaps due to sclerosis |
 Aldosterone
rises |
Low
renal pressure activates renin -> angiotensin -> Aldo |
 Urinary
Na excretion drops |
Aldo increases Na reabsorption |
 Blood
volume rises |
higher
blood Na "holds" H20 osmotically increasing BV |
 Body
BP rises |
Higher BV causes systemic hypertension |
Skidmore
College
Roy Meyers and Leo Geoffrion