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MSN 570 Midterm Exam Study Guide with complete solutions |Latest 2024/2025
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  • MSN 570
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  • MSN 570

Multiple sclerosis A chronic disease of the central nervous system marked by damage to the myelin sheath. Plaques occur in the brain and spinal cord causing tremor, weakness, incoordination, paresthesia, and disturbances in vision and speech What does dopamine do? influences movement, learni...

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  • October 23, 2024
  • 7
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

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  • msn 570
  • msn 570 midterm exam study guide with complete
  • msn 570 midterm exam study guide

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  • MSN 570
  • MSN 570

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MSN 570: Midterm Exam Study Guide i- i- i- i- i- i-




with complete solutions. i- i- i-




Multiple sclerosis A chronic disease of the central nervous system
i- i-i- i- i- i- i- i- i- i- i- i-



marked by damage to the myelin sheath. Plaques occur in the brain and
i- i- i- i- i- i- i- i- i- i- i- i- i-



spinal cord causing tremor, weakness, incoordination, paresthesia, and
i- i- i- i- i- i- i- i-



disturbances in vision and speech i- i- i- i-




What does dopamine do?
i- influences movement, learning, attention,
i- i- i-i- i- i- i- i- i-



and emotion. Dopamine enables neurons in your brain to communicate
i- i- i- i- i- i- i- i- i- i-



and control movement.
i- i-




silent mutation
i- A mutation that changes a single nucleotide, but i-i- i- i- i- i- i- i- i- i- i-



does not change the amino acid created.
i- i- i- i- i- i-




nonsense mutation A mutation that changes an amino acid codon to
i- i-i- i- i- i- i- i- i- i- i- i- i-



one of the three stop codons, resulting in a shorter and usually
i- i- i- i- i- i- i- i- i- i- i- i-



nonfunctional protein. i-




What does messenger RNA do?
i- Transcribes information from the
i- i- i- i-i- i- i- i- i- i-



DNA in the nucleus and carries it to the cytoplasm, and then to the
i- i- i- i- i- i- i- i- i- i- i- i- i- i-



ribosome. Single-stranded, intermediate molecule. Carries the
i- i- i- i- i- i-



instructions for making proteins. i- i- i-

, What do ribosomes do?
i- i- i- i-i- i- Make proteins (protein synthesis)
i- i- i-




Neurotransmitters i-i- i- chemical messengers that cross the synaptic gaps
i- i- i- i- i- i- i-



between neurons i-




Neurotransmitters at the parasympathetic postganglionic synapses i- i- i- i- i- i-i- i-



Acetylcholine and nitric oxide i- i- i-




Atropine Neurotransmitters i-Atropine is a muscarinic receptor i-i- i- i- i- i- i- i-



antagonist that is used to inhibit the effects of excessive vagal activation
i- i- i- i- i- i- i- i- i- i- i- i-



on the heart, which is manifested as sinus bradycardia and AV nodal
i- i- i- i- i- i- i- i- i- i- i- i-



block. Therefore, atropine can temporarily revert sinus bradycardia to
i- i- i- i- i- i- i- i- i-



normal sinus rhythm and reverse AV nodal blocks by removing vagal
i- i- i- i- i- i- i- i- i- i- i-



influences.


alpha adreneric receptors
i- i- i-i- i-




Beta-adrenergic receptor blockers i- i- i-i- i- -Blocks NE/Epi effects on heart -
i- i- i- i- i- i-



less Ca++ entry
i- i-




-Decreases force of cardiac contractions i- i- i- i-




What do anticholinergics do?
i- Decrease the activity of acetylcholine
i- i- i-i- i- i- i- i- i- i-



(neurotransmitter that regulates movement) i- i- i-

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