In a neurone, impulses are carried away from the cell body by the
Correct answer: D. axon
- A. dendrites
- B. dendrons
- C. nucleus
- D. axon
Explanation
Each neurone has one long axon that conducts the impulse away towards the next cell, and many short branched dendrites that collect signals and carry them towards the cell body. The direction of travel is what defines the two, not the length. The axon ends in swellings that release neurotransmitter into a synapse or onto a muscle fibre.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? support@testustad.com
About Neurons and Nerve Impulse
Neurons receive and transmit information through dendrites, the cell body and axons. The topic explains resting potential, depolarization, repolarization, refractory periods and saltatory conduction, followed by synaptic transmission through neurotransmitters. An action potential is distinct from the graded potential produced at a receptor.
Practise Coordination and Control
1,687 free Coordination and Control MCQs from Biology, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Biology questions like this
Biology is on 8 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
More Neurons and Nerve Impulse questions
A myelinated neurone conducts impulses faster than an unmyelinated one because
The resting potential of about minus 70 millivolts across the membrane of a neurone is maintained mainly by
The rapid depolarisation phase of an action potential is caused by
The all or none law of nerve impulse conduction states that