QUESTION 17 In unmyelinated neurons, as axon diameter increases, the speed at which an action travels O increases, increases O decreases, decreases O decreases, increases O increases, decreases QUESTION 18 An ion channel that opens in response to a neurotransmitter binding to a receptor is a O voltage O ligand QUESTION 19 If a neurotransmitter opens K* channels on the post-synaptic cell, that neurotransmitter is: O inhibitory O excitatory because resistance to the flow along the axon gated ion channel
QUESTION 17 In unmyelinated neurons, as axon diameter increases, the speed at which an action travels O increases, increases O decreases, decreases O decreases, increases O increases, decreases QUESTION 18 An ion channel that opens in response to a neurotransmitter binding to a receptor is a O voltage O ligand QUESTION 19 If a neurotransmitter opens K* channels on the post-synaptic cell, that neurotransmitter is: O inhibitory O excitatory because resistance to the flow along the axon gated ion channel
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:QUESTION 17
In unmyelinated neurons, as axon diameter increases, the speed at which an action travels
O increases, increases
decreases, decreases
decreases, increases
O increases, decreases
QUESTION 18
An ion channel that opens in response to a neurotransmitter binding to a receptor is a
voltage
O ligand
QUESTION 19
If a neurotransmitter opens K* channels on the post-synaptic cell, that neurotransmitter is:
inhibitory
O excitatory
QUESTION 20
because resistance to the flow along the axon
gated ion channel
The response of a post-synaptic cell to a neurotransmitter that opens ion channels directly is usually
inside the cell.
faster
O slower
than the response to a neurotransmitter that has to activate enzymes
Expert Solution
Step 1: Introduction
We shall examine several facets of synaptic transmission and neuronal physiology in the following inquiry. These inquiries explore the basic ideas behind how electrical impulses and chemical neurotransmitters are used by neurons to communicate.
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