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प्रश्न
Name three major divisions of the human nervous system.
Name the following:
Two major divisions of the nervous system
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उत्तर
- The central nervous system (brain and spinal cord)
- The peripheral nervous system
- The autonomic nervous system
Notes
Students should refer to the answer according to their questions.
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संबंधित प्रश्न
What is the need for a system of control and coordination in an organism?
Name two systems which taken together perform the functions of control and coordination in human beings.
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.
Put a tick mark (✓) against the correct alternative in the following statement:
The structural and functional unit of nervous system is a
Draw a labelled diagram to show the structure of skin.
Explain the structure of the brain.
Name the following:
Nerve which carry impulse from sensory receptor to CNS.
Define the following:
Nerve impulse
Choose the correct answer.
Synapse is a close proximity of _______________
What are thermoreceptors?
Complete the following sentence with appropriate Word
Neurilemma is:
Column ‘II’ is a list of items related to ideas in Column ‘I’. Match the term in Column ‘II’ with the suitable idea given in Column ‘I’.
| Column I | Column II | ||
| (i) | Auditory canal | (a) | Channels pressure waves of air into the middle ear. |
| (ii) | Auditory (Eustachian tube) | (b) | Collects pressure waves of air. |
| (iii) | Auditory nerve | (c) | Converts pressure waves of air into vibrations of bone. |
| (iv) | Incus | (d) | Dissipates sound waves. |
| (v) | Malleus | (e) | Equalizes pressure between the middle ear and the atmosphere. |
| (vi) | Oval window | (f) | Provide information about the spatial orientation of the head. |
| (vii) | Pinna | (g) | Transfers vibrations from a bone to a fluid. |
| (viii) | Round window | (h) | Transfers vibrations from a bone to a membrane. |
| (ix) | Semi-circular canal | (i) | Transfers vibrations from a bone to a bone. |
| (x) | Stapes | (j) | Transfers vibrations from a membrane to a bone. |
| (xi) | Tympanic membrane | (k) | Transmits action potential to the auditory cortex. |
The functional unit of kidney is neuron.
The outermost of the three cranial meninges are ______
______ and ______ increases the surface area of cerebrum.
Which is the ninth cranial nerve in humans?
What is the third ventricle called?
Subdural space is present between (i)____________ and (ii)____________.
There are ____________ lumbar spinal nerves.
Stimulation of nerves of the sympathetic nervous system ______.
