Flashcards
Neuro Drugs Flashcards
Cards in this deck (33)
- 1the divisions of the peripheral nervous systemsomatic nervous system and the autonomic nervous system
- 2what does the somatic nervous system do?provides voluntary control over skeletal muscles
- 3what does the autonomic nervous system do?provides involuntary control over smooth muscle, cardiac muscle, and glandular activity
- 4what divisions make up the autonomic nervous systemthe parasympathetic and sympathetic nervous systems
- 5what does the sympathetic nervous system do?activated under conditions of stress and produces the fight-or-flight response
- 6what does the parasympathetic nervous system do?activated under non-stressful conditions and produces the rest-and-digest response
- 7what are the two primary neurotransmitters of the autonomic nervous system?norepinephrine (NE) and acetylcholine (Ach)
- 8Which neurotransmitter is released in the sympathetic nervous system at almost all postganglionic nerves and binds with adrenergic receptors?Norepinephrine
- 9Which neurotransmitter is released by presynaptic nerves in the parasympathetic nervous system and binds with cholinergic receptors?Acetylcholine
- 10Where are alpha1-adrenergic receptors located?in all sympathetic target organs except the heart
- 11What does activation of alpha1-adrenergic receptors cause?constriction of blood vessels and dilation of the pupils
- 12Where are alpha2-adrenergic receptors located?at presynaptic adrenergic neuron terminals
- 13What does activation of alpha2-adrenergic receptors cause?they inhibit the release of norepinephrine
- 14Where are beta1-adrenergic receptors located?on the heart and kidneys
- 15What does activation of beta1-adrenergic receptors cause?increase the heart rate and the force of contraction of the heart and the release of renin from the kidneys
- 16Where are Beta2-adrenergic receptors located?They are located in all sympathetic target organs except the heart
- 17What does activation of the beta2-adrenergic receptors cause?It inhibits smooth muscle.
- 18Where are nicotinic receptors found?They are located in cell bodies of sympathetic and parasympathetic postganglionic neurons.
- 19What does activation of nicotinic receptors cause?It stimulates smooth muscle and secretion of glands.
- 20Where are muscarinic receptors located?They are located in the parasympathetic target organs except the heart.
- 21What does activation of the muscarinic receptors cause?It stimulates smooth muscle and secretion from glands.
- 22Adrenergic agents or sympathomimeticsDrugs that stimulate the sympathetic nervous system
- 23Adrenergic-blocking agents/ adrenergic antagonists/ sympatholyticsDrugs that inhibit the sympathetic nervous system
- 24Cholinergic agents/ parasympathomimeticsDrugs that stimulate the parasympathetic nervous system
- 25Cholinergic-blocking agents/ anticholinergics/ parasympatholytics/ muscarinic blockersDrugs that inhibit the parasympathetic nervous system
- 26phenylephrine (Neo-Synephrine) drug classificationadrenergic agents (sympathomimetic)
- 27phenylephrine (Neo-Synephrine) mechanism of actionto stimulate the sympathetic nervous system either directly, by binding to and activating adrenergic receptors, or indirectly, by causing the release of norepinephrine from the presynaptic neuron or by inhibiting the reuptake or destruction of norepinephrine
- 28phenylephrine (Neo-Synephrine) primary useswhen alpha1 receptors are activated: treatment of nasal congestion or hypotension-- causes dilation of pupils during opthalmic exams
alpha2: treatment of hypertension
beta1: treatment of cardiac arrest, heart failure, and shock
beta2: treatment of asthma and premature-labor contractions. - 29phenylephrine (Neo-Synephrine) adverse effectsThe adverse effects are tachycardia, hypertension, dysrhythmias, CNS excitation and seizures, dry mouth, nausea, vomiting, anorexia
- 30prazosin (Minipress) drug classificationclassified as adrenergic-blocking agent
- 31prazosin (Minipress) mechanism of actioninhibits the SNS and produces many of the same rest-and-digest symptoms of the parasympathomimetics
- 32prazosin (Minipress) primary usethe treatment of hypertension, dysrhythmias, angina, heart failure, benigh prostatic hypertrophy, and narrow-angle glaucoma
- 33prazosin (Minipress) adverse effectsdizziness, drowsiness, headache, loss of energy and strength, palpitations, and dry mouth
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- College-Level Nursing Block 4.0 Flashcards on Neuro Drugs Flashcards, created by cpeters on 31/03/2015.
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