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प्रश्न
Distinguish between the following pair of words:
Motor and sensory nerve
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उत्तर
| Motor nerve | sensory nerve |
| A motor nerve contains motor fibres which bring impulses from the brain or spinal cord to the effector ornans. | A sensory nerve contains sensory fibres which bring impulses from the sense organs to the brain or spinal cord. |
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संबंधित प्रश्न
Name the following:
Inability to speak.
Distinguish between the following pair of words:
Cranial nerve and spinal nerve
Where is this located?
Meninges
Spinal cord and sympathetic ganglion of autonomous nervous system are connected by ______________.
Give Technical Term:
The brain and spinal cord together constitute the system known as.
The diagram given below shows the internal structure of the spinal cord, depicting a simple reflex. Study the same and then answer the questions that follow:
(i) Name the parts numbered 1 to 5.
(ii) Using the letters of the alphabet shown in the figure indicate the direction in which an impulse enters and leaves the spinal cord.
(iii) What is the term given to the point of contact between two nerve cells?
(iv) What is meant by ‘simple reflex’ ? Give two examples of simple reflexes and name the stimuli too.
(v) How does the arrangement of nerve cells in the spinal cord differ from that in the brain?
The diagram given below represents the spinal cord of a mammal, seen in a transverse section together with the nerves. Study the diagram and then answer the questions given below:
(i) Label the parts 1—8 indicated by guidelines.
(ii) What do the arrows indicate? What is the pathway indicated termed?
(iii) What type of nerve is shown in the diagram?
Which statement is correct regarding spinal nerves in man?
Spinal cord is enclosed in ____________ of vertebral column.
Given below is the transverse section of the spinal cord. Read the information below the diagram and fill in the blanks:
The spinal cord extends from the medulla oblongata of the brain and runs down through the whole length of the vertebral column. The spinal cord is covered by the meninges. It conducts impulses from the skin and muscles to the brain. It also conducts impulses from the brain to the muscles of the trunk and limbs.
The spinal cord is a part of the (a) ______ Nervous System. The grey matter in the picture given above consists of (b) ______ while the white matter consists of (c) ______. The spinal cord is concerned with the (d) ______ actions below the neck. (e) ______ is the bony structure that protects the spinal cord.
