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प्रश्न
How are cytons and axons arranged in the spinal cord?
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उत्तर
The spinal cord extends from the medulla of the brain down almost the whole length of the backbone to the end at the second lumbar vertebra and lies within the neural canal of the vertebrae.
The arrangement of white matter (axons) and grey matter (cytons) is the reverse of the brain.
Grey matter ( cytons) and association neurons lie on the inner side and white matter (axons) are present on the outer side.
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संबंधित प्रश्न
Distinguish between the following pair of words:
Cranial nerve and spinal nerve
Where is this located?
Ganglia
Choose the correct answer.
Number of spinal nerves in human beings ______________
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?
Complete the following sentence with appropriate word :
The part of the central nervous system which responds to the reflex action is ________.
Identify the odd item from the following series of words.
There are ______ pairs of cranial nerves and ______ pairs of spinal nerves.
Sensory nerve fibres forming ascending tracts in white matter of spinal cord are located in ____________.
Explain the formation of a typical spinal nerve with the help of a neat labelled diagram.
