The organ A which is located inside the skull of our body is protected by a bony box B and it is surrounded by three membranes C. The space between the membranes is called with a liquid D which protects the organ R from mechanical shocks. The organ R in combination with another organ E makes up the central nervous system.
1. What is organ R ?
(i) Brain
(ii) Heart
(iii) Lungs
(iv) Kidneys
2. Name B.
(i) Meninges
(ii) Cranium
(iii) Spinal cord
3. While walking barefooted, if we happen to step on a sharp piece of stone, we immediately lift our foot up. Which of the two organs, A or E, is directly involved in this action ?
(i) A
(ii) E
4. If we step out from a darkened room into bright sunshine, we close our eyes for a moment. Which of the two organs, A or E, is directly involved in this action ?
(i) A
(ii) E
5. Name the organ E.
(i) Meninges
(ii) Cranium
(iii) Spinal cord
