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प्रश्न
Answer the following question.
Supriya stepped out into the bright street from a cinema theatre. In response, her eye pupil shrunk. Identify the muscle responsible for the same.
उत्तर
Smooth muscles (Involuntary muscles) are responsible for shrinking of eye pupil.
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संबंधित प्रश्न
The nervous system of mammals uses both electrical and chemical means to send signals via neurons. Which part of the neuron receives impulse?
Receptors for protein hormones are located ________.
Match the organism with the type of nervous system found in them.
| 1. Neurons | a. Earthworm |
| 2. Ladder-type | b. Hydra |
| 3. Ganglion | c. Flatworm |
| 4. Nerve net | d. Human |
Short answer question
List the properties of the nerve fibres.
Answer the following.
Complete the table.
| Location | Cell Type | Function |
| PNS | ___________ | Produce myelin sheath |
| PNS | Satellite cells | _____________ |
| ___________ | Oligodendrocytes | Form myelin sheath around central axon |
| CNS | ___________ | Phagocytose pathogens |
| CNS | ___________ | Form the epithelial lining of brain cavities and central canal. |
Long answer question
Draw the neat labelled diagram of Multipolar Neuron.
Identify and name the type of tissue in the following:
Inner lining of the intestine
Answer the following question.
Describe the structure of multipolar neuron.
The resting potential of a neuron is ______.
What is the covering of nerve fascicule called?
