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प्रश्न
Enlist the meninges of human brain.
Write a note on meninges of Brain.
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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 autonomic nervous system? What is its function?
The human body contains a large number of cells A which are very long and branched, and look like electric wires. The longest branch of this cell is B whereas there are many small branches C. Any two A cells do not join to one another completely in the human body. There is a microscopic gap D between every pair of adjacent A cells through which electric impulses can pass by the release of a chemical substance.
(a) What are cells A?
(b) What is the name of (i) branch B, and (ii) branches C?
(c) What is the microscopic gap D known as?
(d) What is the function of cells like A in the human body?
(e) The cells A are of three types. name the three types.
State whether the following statement is true (T) or false (F):
The sound waves from the outer ear are carried by the middle ear to the inner ear.
With the help of a suitable diagram describe the structure of a neuron.
Complete the following table by filling in the blank spaces.
| Structure | Function |
| Yellow Spot | |
| Transfers impulse from inner ear to brain | |
| Helps to change the focal length of the eye lens | |
| Spinal cord | |
| Oval window | |
| Dynamic equilibrium |
Name the following:
The neobrain.
Name the parts (a) to (e) in the following diagram.
What is the term given to the sequence of events occurring in the diagram?
Give Technical Term:
Nerve that transfers impulses from ear to brain.
Complete the following sentence with appropriate Word
The function of nervous system is to:
List out the functions of Endocrine system and Nervous system.
