Question detail
Using a reflex arc diagram, label the motor neurone and describe its function in the response to a stimulus.
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
Question
Type
exam_style
Style
Topic
The human nervous system
Question
Using a reflex arc diagram, label the motor neurone and describe its function in the response to a stimulus.
Answer
The motor neurone is labeled as the neurone that carries impulses away from the central nervous system to the effector. Its function is to transmit the coordinated response from the CNS to the muscles or glands, resulting in a physical reaction to the stimulus.
Explanation
This answer effectively identifies the motor neurone and describes its role in the reflex action, showcasing the student's ability to interpret a diagram and understand the sequence of a reflex arc. The question assesses both identification and explanation skills.
Common mistake
Misidentifying Neurones
Students often confuse the roles of sensory, relay, and motor neurones when interpreting a reflex arc diagram.
To fix this, students should review the functions of each type of neurone: sensory neurones carry impulses from receptors to the CNS, relay neurones connect sensory and motor neurones within the CNS, and motor neurones transmit impulses from the CNS to effectors.
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