f21-1 f21-2 f21-3 anti diuretic hormone (adh) renin-angiotensin-aldosterone atrial natriuretic...
TRANSCRIPT
F21-3
Anti Diuretic Hormone (ADH) Renin-Angiotensin-Aldosterone Atrial Natriuretic Hormone
(ANH) Urodilatin
Sources Drinking Food Cellular metabolism
Losses Urine Evaporation
Sweating Respiration and tongue
Faeces
F21-10
Passage of ions is regulated Plasma membrane Active transport Electric charge
Water move by osmosis
F21-12
Detected by hypothalamic osmoreceptors
Increase in thirst sensation
Increase ADH secretion Increase fluid intake Increase permeability of
renal cells More water move into
blood Decrease blood osmolality
LOW OSMOLALITY Detected by hypothalamic
osmoreceptors Decrease thirst sensation Decrease ADH secretion Decrease fluid intake Decrease permeability of
renal cells Less water move into
blood Increase osmolality
HIGH OSMOLALITY
F21-13