題目在痛覺的收縮反射(withdrawal reflex)當中,受到抑制的是下列何者?A.同側伸肌(ipsilateral extensor muscles)B.同側屈肌(ipsilateral flexor muscels)C.對側伸肌(contralateral extensor muscles)D.痛覺受器(nociceptors)官方答案A