ch 46 Flashcards
stimulated by stress, strenuous exercise, pain, hemorrhage, temperature extremes
SNS
- peripheral vasoconstriction
- constriction nasal vessels
- tightening bladder sphincter
alpha receptors
- found in heart
- stimulation causes increased GR & contractility of the heart
beta1
- found in smooth muscles/uterus
- stimulation causes bronchodilation & decreased uterine muscles
beta2
- maintain homeostasis
- acetylcholine
- cholinergic receptors
PNS
the drugs stimulate _______ receptors, therefore increasing BP, decreasing nasal congestion, etc. and are called ______ ___________.
alpha, alpha agonists
these drugs block ______ receptors, therefore treating hypertension, urinary, retention, etc. and are called _______ __________.
alpha, alpha antagonists
these drugs stimulate ______ receptors, therefore increasing HR, BP, and treating HF, and are called _______ ________.
beta1, beta1 agonists
these drugs block _____ receptors, and treat hypertension. they can be selective or non-selective. these drugs are called ______ ___________.
beta1, beta1 antagonists
these drugs stimulate ______ receptors, leading to bronchodilation, and are called _____ __________.
beta2, beta2 agonists
these drugs block _______ receptors, and have no pharmacologic indication since they depress the respiratory system. these drugs are called ______ ___________.
beta2, beta2 antagonists
end in -lol
beta1 antagonists