Question:

Reflex action is controlled by

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The spinal Cord is the center that controls reflex action. Reflex actions are actions that are carried out quickly in response to a stimulus and thus do not involve any thinking and thus are under the control of the spinal cord.

Updated On: Sep 15, 2022
  • Sympathetic nervous system
  • Autonomic nervous system
  • Spinal cord
  • Perepheral nervous system
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The Correct Option is C

Solution and Explanation

Reflex action is controlled by the Spinal cord.

Reflex actions are the actions that are carried out quickly in response to stimuli. Thus do not involve any thinking, and this is why such actions are under the control of the spinal cord. For instance, pulling our hands away immediately after touching a hot or cold object is a classic example of a reflex action. The spinal Cord is the center that controls reflex action. Here, the spinal cord along with the brain stem is responsible for reflex movements.

A few examples of reflex action are: 

  • When light acts as a stimulus, the pupil of the eye changes in size. 
  • Sudden jerky withdrawal of hand or leg when pricked by a pin.
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Concepts Used:

Neural Control and Coordination

Neural System:

Neurons are the most specialised cells in the nervous system of all animals, and they are responsible for detecting, accepting, and conveying numerous types of motives. The neurological system of low-spinal animals like Hydra is incredibly simple, consisting of a network of neurons. When the brain of an insect comprises a vast number of ganglia and neural tissues, it is optimally structured.

Coordination System:

Coordination is the process by which two or more organs work together to accomplish each other's duties. Increased muscle activity increases the supply of oxygen and the demand for energy while we exercise. When we cease exercising, our nerves, heart, lungs, and kidneys all return to normal. As a result, all of the organs' functions are properly integrated in order to conduct the exercise and supply the appropriate conditions while exercising. Similarly, in the human body, the neurological and endocrine systems work together to coordinate all of the organ activities.