VMED 5171 - Exam 1 Practice Question (Dr. Strain) (Latest 2024 / 2025 UPDATES STUDY) Exam Reviews | Questions and Verified Answers | 100% Correct | Grade A

VMED 5171 - Exam 1 Practice Question (Dr. Strain) (Latest 2024 / 2025 UPDATES STUDY) Exam Reviews | Questions and Verified Answers | 100% Correct | Grade A VMED 5171 - Exam 1 Practice Question (Dr. Strain) C - -Which one of the following will not increase action potential conduction velocity? A.Myelination B.Increased axon diameter C.Decreased temperature D.Pre-existing membrane depolarization A - -Voltage-gated Na+ channels: A.Inactivate shortly after activation B.Are located on post-synaptic membranes C.Are found under myelin on myelinated axons D.Non-selectively permit ions through when activated E - -Which one of the following is/are not an electrotonic potential? If all ARE, answer 'E". A.Receptor potential B.EPSP C.IPSP D.Generator potential E.All are electrotonic potentials A - -The Nernst equation describes the potential that develops across a semi-permeable membrane. Based on the equation, applied to a cell, what would happen to the magnitude of the Nernst potential if the temperature is increased? A.Increase B.Decrease C.No change B - -The adequate stimulus for a muscle spindle would be: A.Change in pressure B.Change in muscle length C.Change in temperature D.Electromagnetic radiation C - -Activation of Ib afferent fibers from Golgi tendon organs, due to excess muscle stretch, causes: A. Relaxation of the homonymous and synergistic muscles B. Contraction of the antagonist muscle C. A and B B - -Nuclear bag intrafusal fiber receptors (Ia afferents) respond best to: A.Sustained stretch B.Change in stretch B - -Two action potentials arrive along one axon at a synapse in close succession, resulting in two EPSPs that partially overlap each other. This is known as: A.Spatial summation B.Temporal summation C.Accommodation D.Distortion