Regulation Of Kidney Function Flashcards
functioning of kidneys is efficiently monitored and regulated by harmonal feedback mechanisms involving
hypothalamus
jga
heart
osmoreceptors in the body are activated by
changes in blood volume, body fluid volume, ionic concentration
active osmoreceptors stimulate what to release what from what
hypothalamus
antidiuretic harmone
neurohypophysis
antidiuretic harmone is also called
vasopressin
what does adh do
prevents diuresis by facilitating water reabsorption from latter parts of renal tubule
constrict blood vessels to increase blood pressure
what activates the jg cells
a fall in GFR
active jg cells release what for what
renin
to convert angiotensinogen (in blood) to angiotensin I
angiotensin I is converted to
angiotensin II
what does angiotensin II do
powerful vasoconstrictor
increases GFR by increasing glomerular blood pressure
activates adrenal cortex to release aldosterone
what does aldosterone do
causes reabsorption of Na+ and water from distal parts of renal tubule which increases blood pressure and GFR
this mechanism is generally known as
renin-angiotensin mechanism
an increase inn blood flow to the atria of heart can cause the release of
atrial natriuretic factor
what does anf do
causes vasodilation to decrease blood pressure
