Nurs 663-- Lecture +3 (Quiz 1)
exam with 100% correct
answers
what are neurotransmitters that change shapes to fit specific
receptor subtypes?
acetycholine
What drugs increase the natural neurotransmitter (ACh) by blocking
the enzymes or reuptake mechanisms that deactivate /remove the
neurotransmitter?
indirect agonist
What drugs directly bind with the ACh receptors and mimic the
effects of the neurotransmitter?
direct agonist
what are the uses of neostigimine, physostigimine, &
pyridostigimine?
1. reverse effects of non-depolarizing agents (nicotinic)
2. myasthenia gravis (nicotinic)
3. glaucoma (muscarinic)
4. tachycardia (muscarinic)
5. reverse anticholingeric toxicity
6. pesticides
What AChEls drugs effect the CNS?
Donepezil
what is the mechanism of action for a muscarinic agent?
1. directly stimulates cholingeric receptors
2. produces contraction of iris spinchter muscle; increased pupillary
constriction
3. increased accomodation
4. reduction of intraocular pressure
true/false: another mechanism of action for a muscarinic agent is
the inhibition of hydrolysis by competing with acetycholine for
exam with 100% correct
answers
what are neurotransmitters that change shapes to fit specific
receptor subtypes?
acetycholine
What drugs increase the natural neurotransmitter (ACh) by blocking
the enzymes or reuptake mechanisms that deactivate /remove the
neurotransmitter?
indirect agonist
What drugs directly bind with the ACh receptors and mimic the
effects of the neurotransmitter?
direct agonist
what are the uses of neostigimine, physostigimine, &
pyridostigimine?
1. reverse effects of non-depolarizing agents (nicotinic)
2. myasthenia gravis (nicotinic)
3. glaucoma (muscarinic)
4. tachycardia (muscarinic)
5. reverse anticholingeric toxicity
6. pesticides
What AChEls drugs effect the CNS?
Donepezil
what is the mechanism of action for a muscarinic agent?
1. directly stimulates cholingeric receptors
2. produces contraction of iris spinchter muscle; increased pupillary
constriction
3. increased accomodation
4. reduction of intraocular pressure
true/false: another mechanism of action for a muscarinic agent is
the inhibition of hydrolysis by competing with acetycholine for