Nervous System: Structure of Nerve and Types of Nervous System
Nervous System: Structure of Nerve and Types of Nervous System: Overview
This topic covers two main parts of the human neural system with the functions of the nerve fibre. It explains how cyton helps in metabolic maintenance and growth. It also covers a detailed diagram to explain the neuron structure.
Important Questions on Nervous System: Structure of Nerve and Types of Nervous System
Assertion: Corpus callosum is present in space between the dura mater and pia mater.
Reason: It serves to maintain the constant intracranial pressure.
The non-myelinated nerve fibres surround:
The non-myelinated nerve fibres are the nerve cell in the autonomous nervous system.
The non-myelinated nerve fibres is a neuron that does not have _____ (myelin/nerve) sheath surrounded the axon.
Explain Non-myelinated nerve fibre.
Identify the function of olfactory lobe:
_____ lobes are club-shaped widely spread bodies that are visible from the ventral surface only and are smaller in birds compared to that in mammals.
Explain:
Olfactory lobes
Olfactory lobes refer to club-shaped widely spread bodies that are visible from the ventral surface only.
Write a note on grey matter present in spinal cord and brain.
Fill up the table according to the given conditions
| S.No. | Condition | Stimulus | Response |
| 1. | Startled due to sound of a blast | Sound of a blast | Startled |
| 2. | Feeling of apprehension due to examination | ||
| 3. | Trembling due to cold | ||
| 4. | Watering of mouth at the sight of good food | ||
| 5. | Turning the head in the direction of sound |
Motor neurons conduct impulses from sensory organs to the brain and the spinal cord.
The motor nerves deliver the stimuli
Throwing ball and writing are involuntary actions.
The beating of the heart is a voluntary function.
Mixed nerves carry impulses
The cerebellum controls
Give a reason for the given statement:
Nerve cells are long and branched
Explain the term:
Neuron
Match the following:
| Column A | Column B |
| 1. Dendron | a. Controlled by the medulla oblongata |
| 2. Vertebral column | b. Carry impulses to effector organs |
| 3. Impulses | c. Irregular folds on outer surface |
| 4. Effector organs | d. Nerve |
| 5. Bundles of axons | e. Fatty white substance covering an axon |
| 6. Swallowing | f. Distributes nutrients to the brain |
| 7. Motor nerves | g. Glands and muscles |
| 8. Myelin sheath | h. Has many branches |
| 9. Cerebrum | i.Messages encoded as electrical signals |
| 10. Cerebrospinal fluid | j. Protects the spinal cord. |
