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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 supporting cells that produce myelin sheath in the PNS are _________.
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 |
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.
Answer the following question.
Identify and name the type of tissue in the following:
Skin
Identify and name the type of tissue in the following:
Inner lining of the buccal cavity
Match the following:
| 'A' Group | 'B' Group |
| 1. Muscle | a. Perichondrium |
| 2. Bone | b. Sarcolemma |
| 3. Nerve cell | c. Periosteum |
| 4. Cartilage | d. Neurilemma |
The resting potential of a neuron is ______.
A motor nerve carries impulses from ______
