A relay neurone differs from a motor neurone in that it:
Acarries impulses directly between two effectors
Bcarries impulses from the CNS out to a muscle
Ccarries impulses from a receptor into the CNS
Dcarries impulses between neurones inside the CNS
Answer & Solution
Correct answer: D. carries impulses between neurones inside the CNS
1. Neurones are named for where they carry impulses.
2. A relay neurone sits within the central nervous system, passing impulses between other neurones there.
3. A motor neurone runs outward from the central nervous system to effectors such as muscles and glands.
4. A sensory neurone runs the other way, from receptor into the central nervous system.
5. Effectors do not signal one another directly; every impulse routes through the coordinator.
_Source: NECTA CSEE 2022 Biology 033, Question 1: Multiple Choice Items, item (i)_
Related questions
A neurone's mitochondria are damaged while every other organelle stays intact. What does tAn organism suffers severe damage across its whole nervous system. Which three abilities fAsked to name a type of neurone, a candidate answers 'myelin neurone'. What is the error?A patient's myelin sheaths are progressively stripped from their nerves. What happens to tA neurone's Nissl granules are destroyed by disease. Which function is lost first?You walk from bright sunlight into a dim room. What happens to your pupil?Which component of the nervous system receives impulses from receptors?The message in nervous coordination travels as: