Question
Differentiate between myelinated and non-myelinated axons.
| Myelinated axons | Non-myelinated axons | ||
| 1. | Transmission of nerve impulse is faster. | 1. | Transmission of nerve impulse is slower. |
| 2. | Myelinated axon has a myelin sheath. | 2. | Myelin sheath is absent. |
| 3. | Node of Ranvier is present between adjacent myelin sheaths. | 3. | Node of Ranvier is absent. |
| 4. | Found in the brain, the spinal cord, the cranial and spinal nerves. | 4. | Found in autonomous and somatic neural systems. |
| 5. | Schwann cells are observed inside the myelin sheath. | 5. | Schwann cells are not observed inside the myelin sheath. |
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Column I
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Column II
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(a)
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Ammonotelism
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(i)
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Birds
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(b)
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Bowman’s capsule
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(ii)
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Water reabsorption
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(c)
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Micturition
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(iii)
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Bony fish
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(d)
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Uricotelism
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(iv)
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Urinary bladder
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(e)
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ADH
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(vii)
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Renal tubule
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