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Hormonal Control of BP (Vasopressin (Anti-diuretic hormone)…
Hormonal Control of BP
Renin-angiotensin-aldosterone system
Renin
"Enzyme made + stored by juxtaglomerular cells (Kidneys)"
Released in response to ↑ SNS activity/ ↓ BP/ ↓ [Na+]
Converts
Angiotensinogen (Inactive)
Angiotensin I
Angiotensin II
Strong vasoconstrictor
On arterioles
↑ BP
↑ Na+ reaborption
Proximal convoluted tubules of Kidney
↑ BP
Aldosterone secretion
From adrenal cortex (kidney)
Promoting Na+ & water retention by kidneys
↑ BP & Blood volume
Liver
Vasopressin (Anti-diuretic hormone)
Posterior pituitary gland
↓ Blood volume/ BP
Vasoconstrictor
Short term effect
↑ BP/ Blood volume
Catecholamines
Adrenal gland
Constricts blood vessels
↑ BP
Epinephrine & Norepinephrine
Released from kidneys
Renin
Catecholamines
Aldosterone
Blood pressure
Peripheral Vascular Resistance
Blood viscosity
Vessel radius
Cardiac Output
HR * SV
Angiotensin-converting enzyme
Endothelium of lungs
Found in
Produced by
Mainly on
By
Stimulates
Long-term regulation by
Released from
Released
Produced by
Responds to
Acts as
Has
Influenced by