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प्रश्न
Enlist the meninges of human brain.
Write a note on meninges of Brain.
उत्तर
Meninges are the protective membranes surrounding the brain and spinal cord. They are as follows:
- Dura mater: It is the outermost tough, non-vascular, thick and fibrous meninx and is attached to the inner side of the cranium. Sub-dural space filled with serous fluid is present between dura mater and arachnoid mater.
- Arachnoid mater: It is the middle, thin and non-vascular layer of connective tissue having web like appearance. Sub-arachnoid space is present between arachnoid mater and pia mater. It is filled with Cerebrospinal fluid (CSF).
- Pia mater: It is the innermost delicate, highly vascular membrane. It lies in close contact with the CNS.
संबंधित प्रश्न
What is voluntary nervous system? Explain the working of the voluntary nervous system with an example.
The organ A which is located inside the skull of our body is protected by a bony shell B. It is surrounded by three layers membranes C. The spaces between these layers are filled with a liquid D which protects organ A from mechanical shocks. Organ A in combination with another organ E makes up the central nervous system.
(a) What is organ A?
(b) What are B, C and D?
(c) Name the organ E.
(d) While walking barefoot, 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?
(e) If we step out from a darkened room into bright sunlight, we close our eyes for a moment. Which of the two organs: A or E, is directly involved in this action?
Briefly describe the structure of the cerebrum in the human brain, and mention its functions.
Name the following :
(i) The layer of the eyeball that provides nourishment to the eye.
What are the functions of the nervous system?
Explain the term: Mixed nerve
Give Technical Term:
Nerve that transfers impulses from ear to brain.
What does the cerebellum of the brain control?
Identify the location of the arbor vitae.
Which part of the brain has control over the endocrine system?
