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Question
Explain the Term:
Synapse
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Solution
Synapse is the junction or small gap between two adjoining nerve cells (neurons), specifically between the axon terminal of one neuron and the dendrite or cell body of the next. The nerve cells do not physically touch; instead, the synapse allows the transmission of nerve impulses chemically.
RELATED QUESTIONS
Write a and b in the given flow chart of the neuron through which information travels as an electrical impulse.
How does the human nervous system work? Explain.
Name the following:
Flap like structure of outer ear.
Differentiate between rods and cones.
Differentiate between following pair with reference to the aspect in bracket.
sympathetic nervous system and para – sympathetic nervous system (overall effect on body)
Mention, if the following statement is True or False
A nerve impulse passes from one neuron to another across a synapse.
Choose the Odd One Out:
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. |
Long answer question
Explain the Reflex Pathway with the help of a neat labelled diagram.
A bundle of axons inside the central nervous system is ______.
