A neuromuscular syndrome that is an autoimmune disorder (found in patients with certain types of cancer and leads to muscle weakness) causes a partial loss of voltage-gate Ca++ channels in the presynaptic terminal of a neuron. What is the direct effect of this loss? A decrease in the frequency of action potentials along the pre-synaptic neuron A decrease in vesicle release into the synaptic cleft A decrease in Eca (equilibrium potential for calcium) A decrease in summation of graded potentials on the post-synaptic neuron A decrease in neurotransmitter binding receptors on the post-synaptic neuron
A neuromuscular syndrome that is an autoimmune disorder (found in patients with certain types of cancer and leads to muscle weakness) causes a partial loss of voltage-gate Ca++ channels in the presynaptic terminal of a neuron. What is the direct effect of this loss? A decrease in the frequency of action potentials along the pre-synaptic neuron A decrease in vesicle release into the synaptic cleft A decrease in Eca (equilibrium potential for calcium) A decrease in summation of graded potentials on the post-synaptic neuron A decrease in neurotransmitter binding receptors on the post-synaptic neuron
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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Transcribed Image Text:A neuromuscular syndrome that is an autoimmune disorder (found in patients with certain types of cancer and leads to muscle weakness) causes a partial loss of voltage-gated
Ca++ channels in the presynaptic terminal of a neuron. What is the direct effect of this loss?
O A decrease in the frequency of action potentials along the pre-synaptic neuron
O A decrease in vesicle release into the synaptic cleft
A decrease in Eca (equilibrium potential for calcium)
A decrease in summation of graded potentials on the post-synaptic neuron
O A decrease in neurotransmitter binding receptors on the post-synaptic neuron
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