answer both A mutation in the sodium voltage gated channel in which theinactivation gate closes more slowly but everything elseremains the same would likely result ina. A being lowerb.c.d.e.B being less steepC being less positive (shorter)C being more positive and/or widerE being less negativeAn excitatory drug would causeA to be more negativeA to be more positivea.b.C.C to be taller (more positive)d. C to be shorter (less positive)Membrane potential (mv)+40--40--60-80-A0BDH 2Time (msec)E3

These questions delve into the intricate workings of neuronal communication, specifically focusing…

A mutation in the sodium voltage gated channel in which the inactivation gate closes more slowly but everything else remains the same would likely result in a. A being lower b. B being less steep c. C being less positive (shorter) d. C being more positive and/or wider e. E being less negative An excitatory drug would cause a. A to be more negative b. A to be more positive d. C to be taller (more positive) C to be shorter (less positive) Membrane potential (mv) +40- -40- -60- -80- A B C D E 2 Time (msec) Fm

A mutation in the sodium voltage gated channel in which the inactivation gate closes more slowly but everything else remains the same would likely result in a. A being lower b. B being less steep c. C being less positive (shorter) d. C being more positive and/or wider e. E being less negative An excitatory drug would cause a. A to be more negative b. A to be more positive d. C to be taller (more positive) C to be shorter (less positive) Membrane potential (mv) +40- -40- -60- -80- A B C D E 2 Time (msec) Fm

Basic Clinical Lab Competencies for Respiratory Care: An Integrated Approach

5th Edition

ISBN:9781285244662

Author:White

Publisher:White

Chapter14: Introduction To Respiratory Care Pharmacology

Section: Chapter Questions

Problem 3SEPT

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Using cable theory to describe axon conduction would tell us a. the larger the diameter of the axon the faster the propagation of the action potential b. the larger the diameter of the axon the slower the propagation of the action potential c. the smaller the diameter of the axon the faster the propagation of the action potential d. that having big axons is of no benefit and only takes up a lot of space e. the nervous system mainly has small axons because they are much faster than large ones
ptor opening its ion channel 3. Which of the following is true for both NMDA and AMPA receptors? A. They are both only found in glial cells B. They are both Ionotropic glutamate receptors C. They both control a Ca2 ion channel D. Both are neurotransmitter-dependent & voltage-dependent 4. Which of the following best characterizes the memory disorder of Dr. Sacks patient Jimmie G.? A. Anterograde amnesia caused by surgical removal of his hippocampus B. Retrograde amnesia caused by surgical removal of his hippocampus C. Anterograde amnesia caused by Korsakoff s syndrome D. Retrograde amnesia caused by Korsakoff's syndrome 5. Which of the following types of learning is adversely affected in those who have anterograde amnesia? A. Stimulus-Response B. Perceptual C. Relational D. Motor 2)
Local anesthetics "block" the action potential and therefore do not allow "pain" information to proceed to the brain and spinal cord. In the presence of these molecules (local anesthetics) 'threshold' is essentially "ignored". The molecules most logically work by: 23. a. Decreasing the intracellular [potassium] b. Blocking the opening of the voltage-gated potassium channels c. Decreasing the extracellular [sodium] d. Blocking the opening of the voltage-gated sodium channels
The made-up drug leakyhose degrades myelin resulting in myelin becoming more porous and therefore a poor insulator. 2.) Which of the following would NOT be an effect of leakyhose? A. Propagation of the action potential would likely slow B. The action potential may degrade because it can’t properly be regenerated C. The action potential would not propagate but would rather reverse directions D. Saltatory conduction may be disrupted E. All of the above effects are consistent with the administration of leakyhose
Which one is correct about the AP conduction velocity of nerve fiber A. Increase of the temperature within physiological limit will increase the conduction velocity. B. The fiber with big diameter always conducts faster. C. The increase of extracellular K+ will increase the conduction velocity D. Myelination of nerve fiber always decreases the conduction velocity. E. Anesthesia do not influence the conduction velocity.
Exposure to the compound below is most effectively treated with? CI CI N do= O-P O CH3 CH3 Itranscript O A. atropine & trimethaphan O B. edrophonium and methacholine OC. atropine & pralidoxime O D. pilocarpine & pralidoxime O E. neostigmine OF. IV bolus of acetylcholine
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