Question 6
Original source text (the exact panel preserves diagram labels, tables and choices):
While helping her mother stitch clothes, Aisha accidentally pricks her finger with a
pin. Immediately, without thinking, her hand jerks back. This quick, automatic
response is called a reflex action. This helps protect the body from harm by
allowing it to respond to danger without waiting for the brain to process the
information. Curious, she looks at a diagram showing this simple reflex arc with
three neurons labelled X, Y, and Z.
Which sequence shows the CORRECT pathway of the nerve impulse during
this reflex action?
A. Neuron Z → Neuron Y → spinal cord → Neuron X
B. Neuron X → spinal cord → Neuron Z → Neuron Y
C. Neuron X → spinal cord → Neuron Y → Neuron Z
D. Spinal cord → Neuron Y → Neuron X → Neuron Z
While helping her mother stitch clothes, Aisha accidentally pricks her finger with a
pin. Immediately, without thinking, her hand jerks back. This quick, automatic
response is called a reflex action. This helps protect the body from harm by
allowing it to respond to danger without waiting for the brain to process the
information. Curious, she looks at a diagram showing this simple reflex arc with
three neurons labelled X, Y, and Z.
Which sequence shows the CORRECT pathway of the nerve impulse during
this reflex action?
A. Neuron Z → Neuron Y → spinal cord → Neuron X
B. Neuron X → spinal cord → Neuron Z → Neuron Y
C. Neuron X → spinal cord → Neuron Y → Neuron Z
D. Spinal cord → Neuron Y → Neuron X → Neuron Z