Question

30 when the flexor muscles of one arm contract in a withdrawal reflex, the extensor muscles of the other arm contract. what is this response called? multiple choice ipsilateral reflex. crossed flexor reflex crossed extensor reflex flexor extensor reflex

Explanation:

• Ipsilateral reflex: Occurs on the same side of the body. But the question involves opposite - side (contralateral) muscle action (flexor on one arm and extensor on the other), so this is incorrect.
• Crossed flexor reflex: Focuses on flexor - related responses on the contralateral side. But the question has an extensor response on the contralateral side, so this is wrong.
• Crossed extensor reflex: When a withdrawal (flexor) reflex occurs on one side (e.g., one arm), the extensor muscles of the opposite side (the other arm) contract. This matches the description in the question.
• Flexor extensor reflex: Is a non - standard and not a recognized specific reflex term in this context.

Answer:

Crossed extensor reflex