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प्रश्न
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.
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उत्तर
The spinal cord is a part of the (a) Central Nervous System. The grey matter in the picture given above consists of (b) cytons/nerve cell bodies while the white matter consists of (c) axons/nerve cell fibres. The spinal cord is concerned with the (d) reflex actions below the neck. (e) Vertebral column is the bony structure that protects the spinal cord.
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संबंधित प्रश्न
Distinguish between the following pair of words:
Motor and sensory nerve
Give Technical Term:
The brain and spinal cord together constitute the system known as.
Give Technical Term:
The fluid which fills the central canal of the spinal cord.
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?
Describe the structure of the spinal cord.
Which neuron conducts impulse from the spinal cord to the effector organ?
Sensory nerve fibres forming ascending tracts in white matter of spinal cord are located in ____________.
Spinal cord is enclosed in ____________ of vertebral column.
______ connects the brain to a different part of the body through nerves.
In humans, the number of spinal nerves are ______.
