exam 2 Flashcards
Vasopressin
also called ADH, renal water reabsorption
ADH
also called vasopressin, antidiuretic hormone- less pee
Hormone ANP (atrial natriuretic peptide) fucntions antagonistically to
aldosterone
What does ANP do
regulate BP through kidney activity. Promotes excretion of water and Na+
What does aldosterone do?
Increase Na+ retention
What does Angiotensin II do?
Incr BP by constricting blood vessels
ACE (angiotensin-converting enzyme) inhibitors do what
Decr BP by preventing the conversion of angiotensin 1 to 2
ARBs (Angiotensin II blockers) do what
decr BP by inhibit effect of Angiotensin II
Myogenic is what?
Autoregulation of vascular smooth muscle bc incr in pressure (local/ chemical changes- stretch, NO hormone or CNS involved)
Septic shock is caused by what
infection causing low BP
Hypovolemic shock is caused by what
Circulatory shock causing low blood volume (result of hemorrhage)
Rapid fall in BP bc of spinal cord injury or anesthesia
Neurogenic shock
Rapid fall in BP bc allergic rxn
Anaphylactic shock
Circulatory shock bc cardiac failure
Cardiogenic shock
What receptors do NE and Epi bind to in the heart?
B1- adrenergic
NE is released by which neurons and causes what to the heart
sympathetic, incr
What does medulla oblongata do?
is the cardiac control center that coordinates autonomic innervation of the heart
Afterload
Preload
Positive inotropic agents do what
increase contractility
positive chronotropic agents does what
incr HR
decr sympathetic stimulation causes the blood vessels to do what
vasodilate
The net osmotic pressure at the arterial end of the capillary is equal to the net osmotic pressure at the venous end. True/False
True
