A) Your kneeing took up a stone than dog run away
B) Eye closed when anything enter into it
C) Hand took up when piercing with needle
D) Digestive food goes forward in alimentary canal
Correct Answer: A
Solution :
Reflex reaction is an immediate involuntary response to a stimulus. The reflexes developed by training and learning are called conditioned or acquired reflexes. During learning, these activities occur under cerebra control, but once established these occur by habit as reflexes. Some common examples are dancing, cycling, playing, driving etc. In the reflex reactions, a sensory impulse reaching central nervous system (brain or spinal cord) is itself returned to an effector as a motor impulse without neuronal analysis and integration. Naturally the necessary response automatically and suddenly occurs almost as soon as a stimulus is received. The common examples are sudden with drawl of hands or feet with a jerk, from sudden contact with hot or cold or sharp object etc.
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