교과서 질문
Reflex arcs in which the sensory stimulus and the motor response occur on the same side of the body are:
(a) Contralateral
(b) Paraesthetic
c) Ipsilateral
(d) Monosynaptic.
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13. The Peripheral Nervous System
Introduction to Reflex Arcs
객관식
Which of the following reflexes is particularly important in maintaining balance and often accompanies the flexor reflex in weight-bearing limbs?
A
deep tendon reflexes
B
abdominal reflexes
C
withdrawal reflexes
D
superficial reflexes
E
crossed extensor reflexes
검증된 단계별 안내1
Understand the context of the problem: Reflexes are automatic responses to stimuli that help protect the body and maintain homeostasis. In this case, we are focusing on reflexes that help maintain balance.
Identify the reflexes listed: The problem provides several types of reflexes, including deep tendon reflexes, abdominal reflexes, withdrawal reflexes, superficial reflexes, and crossed extensor reflexes.
Consider the function of each reflex: Deep tendon reflexes involve muscle contraction in response to stretching, abdominal reflexes involve contraction of abdominal muscles, withdrawal reflexes involve pulling away from a painful stimulus, and superficial reflexes involve skin stimulation. Crossed extensor reflexes are involved in maintaining balance.
Focus on the role of crossed extensor reflexes: This reflex is crucial for balance, especially in weight-bearing limbs. When one limb withdraws from a painful stimulus, the opposite limb extends to support the body's weight, maintaining balance.
Conclude that the crossed extensor reflex is the correct answer: Given its role in balance and coordination, particularly in weight-bearing situations, the crossed extensor reflex is the reflex that accompanies the flexor reflex to maintain balance.
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