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The given diagrammatic representation of reflex action shows knee jerk reflex.
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Identify the parts labelled as A to E and select the correct option.

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Important Questions on Control and Co-ordination

MEDIUM
The path of passage of stimulus when you accidentally touch a hotplate is
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Destruction of the anterior horn cells of the spinal cord would result in loss of:
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The diagram is given below the internal structure of a spinal cord depicting a phenomenon. Study the diagram and answer the questions.

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Mention two ways by which the spinal cord is protected in our body.

HARD
A man is walking for a mile. A thorn pricks his leg so suddenly he bows down. At that time he gets sudden sparking pain at his back. This is due to sudden change in the position of back body muscles. Explain it.
MEDIUM

The diagram is given below the internal structure of a spinal cord depicting a phenomenon. Study the diagram and answer the questions.

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Name the parts numbered 1, 2 and 3.

EASY
Which part of the brain is responsible for thermoregulation?
MEDIUM

Given below are sets of five terms each. Rewrite the terms in correct order in a logical sequence beginning with the first word that is underlined:

Stimulus, Response, Receptor, Effector, Spinal cord

MEDIUM

The diagram is given below the internal structure of a spinal cord depicting a phenomenon. Study the diagram and answer the questions.

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How does the arrangement of neurons in the spinal cord differ from that of the brain?

EASY

 Choose the ODD one out from the following terms given and name the CATEGORY to which the others belong:

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Which of the following regions of the brain is incorrectly paired with its function?
EASY
In our body, the largest number of neuron cells can be found in ___.
EASY
Injury localized to the hypothalamus would most likely disrupt
EASY

Choose the correct answer from the four options given below:

Which of the following is not a natural reflex action?

HARD

Redraw, complete and label the diagram given below which relates to the reflex arc.

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MEDIUM

The diagram given alongside shows the internal structure of a spinal cord depicting phenomena. Study the diagram and answer the questions:

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Name the phenomenon that is depicted in the diagram. Define the phenomenon.