In a patient with a disease damaging the myelin sheath, which of the following would most likely be observed?

Question

BlackTom AI · Accepted Answer

In demyelinating conditions, the insulation of axons is compromised, which primarily affects the speed of signal travel rather than the basic generation of the action potential itself.
Option 1: 'Reduced strength of the action potential.' Demyelination tends to slow conduction rather than directly reducing the all-or-none amplitude of the action potential at the node of Ranvier. While signal degradation can occur with severe damage, the hallmark is slower conduction, not necessarily a weaker spike.
Option 2: 'Overproduction of neurotransmitters at the synapse.' This choice describes synaptic dysregulation rather than an issue with the myelin sheath and axonal conduction. Demyelination changes electrical signal propagation, not neurotransmitter synthesis or release at the synapse.
Option 3: 'Slower transmission of neural signals along affected axons.' This is the core consequence of losing myelin: saltatory conduction is disrupted, leading to decreased conduction velocity and slowed neural communication. It directly reflects the structural problem in myelin.
Option 4: 'Increased speed of action potential conduction.' This is the opposite of what happens when myelin is damaged. Myelin serves to accelerate conduction; its loss would not increase speed.

PSYC_001_050_25W Quiz 3

In a patient with a disease damaging the myelin sheath, which of the following would most likely be observed?

View Explanation

Log in for full answers

Similar Questions

In a consumer society, many adults channel creativity into buying things

Economic stress and unpredictable times have resulted in a booming industry for self-help products

People born without creativity never can develop it

A product has a selling price of $20, a contribution margin ratio of 40% and fixed cost of $120,000. To make a profit of $30,000. The number of units that must be sold is: Type the number without $ and a comma. Eg: 20000

Which of the following statement regarding cost is correct:

Under the assumptions used in cost-volume-profit analysis, as the activity increases:

The CVP and break-even analysis are supported by a range of important assumptions. Which of the following is not an assumption of the CVP:

The break-even point is that at which:

More Practical Tools for Students Powered by AI Study Helper

Homework AI Solver

Stylized AI Paper Writer

Plagiarism Checker Assistant

Citation AI Academic Writing Tool

In-Class Translation Assistant

AI Note Generator

AI Quiz Answers

Past Exam Questions from University Test Bank

Smart Practice Assistant

Adaptive Practice

Making Your Study Simpler