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प्रश्न
Given alongside is a partial diagrammatic representation of a certain phenomenon pertaining to the nervous system.
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- Name the parts numbered 1-7.
- Name the phenomenon that the diagram depicts and define it.
- Give the technical term for the point of contact between two nerve cells.
- Name the parts not shown in the diagram that should be included to complete the pathway of the phenomenon.
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उत्तर
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- White matter
- Spinal cord
- Dorsal root (sensory)
- Association Neuron
- Ventral root
- Gray matter
- Central Canal
- The diagram depicts spinal reflex action.
It is an automatic/quick/immediate, involuntary action in the body brought about by a stimulus. - Synapse
- Receptor, sensory neuron, motor neuron, ·spinal nerve, effector muscles
संबंधित प्रश्न
Name the most important part of the human brain.
A cell (or group of cells) in a sense organ which is sensitive to a particular type of stimulus is called :
(a) interceptor
(b) effector
(c) receptor
(d) acceptor
The involuntary actions in the body are controlled by :
(a) medulla in forebrain
(b)medulla in hindbrain
(c) medulla in spinal cord
(d) medulla in midbrain
State whether the following is simple reflex, conditioned reflex or neither of the two:
Blushing: ……………….
Define the following:
Reflex action
Give Reason:
The hand automatically shows the direction to turn a cycle without thinking.
Mention, if the following statement is True or False
Reflex action is a unit of nervous action
In reflex action, the reflex arc is formed by ______
A change in the environment that causes an animal to react is called ______.
Differentiate between Voluntary and involuntary actions.
