Nerve Structure and Conduction QuizVersión en línea
Test fundamentals of neuron structure and how signals travel.
1
What is the resting membrane potential of a neurone compared to the sarcolemma and what end-plate potential must the action potential surpass?
2
How is the membrane potential of a neurone created and maintained
3
What components prevent backwards propagation and control rate of firing
4
What structure permits saltatory conduction
5
What lipids and proteins are Schwann cells comprised of
6
Select all types of neurone structures
Choose one or more answers
7
What causes the neurone to be depolarised and polarised
8
Select the three different neurium layers
Choose one or more answers
9
What determines the conduction speed of a nerve fibre
10
What enzyme within the synaptic gutter removes the concentration of Ach in the synaptic cleft
11
What specific structure does ACh bind to on the Sarcolemma
12
What is the order from fastest to slowest nerve fibre conduction speed
13
What is the conduction speed of neurone fibre type A alpha
14
Select all of the functions of glial cells in the nervous system
Choose one or more answers
15
Describe the structure of a pseudounipolar neurone
16
Which part carries the nerve impulse away from the cell body?
17
What insulating layer speeds up conduction along a nerve fiber?
18
Gaps in the myelin along an axon are called what?
19
The junction between two neurons where neurotransmitters are released is called?
20
What type of potential triggers an action potential when threshold is reached?
21
Which ion influx primarily initiates the rising phase of an action potential?
22
Which ion efflux mainly repolarizes the membrane after a spike?
23
What maintains resting membrane potential in neurons?
24
What is the term for the brief period after an action potential when a neuron cannot fire another?
25
Which structure connects neuron to target cell at a synapse?
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