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प्रश्न
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?
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उत्तर
(i)
- White matter
- Gray matter
- Dorsal root
- Ventral root
- Dorsal ganglion
- Sensory neuron
- Spinal nerve
- Synapse
(ii) The arrows indicate the arrangement of white and gray matter is reversed from that in the brain. The patl4way indicated is termed as a nerve pathway in a simple spinal reflex.
(iii) Sensory or Afferent nerve.
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संबंधित प्रश्न
Name the following:
Inability to speak.
Give Technical Term:
The fluid which fills the central canal of the spinal cord.
Complete the following sentence with appropriate word :
The part of the central nervous system which responds to the reflex action is ________.
Mention, if the following statement is True or False
Spinal nerves are twelve pair
Identify the odd item from the following series of words.
There are ______ pairs of cranial nerves and ______ pairs of spinal nerves.
Describe the structure of the spinal cord.
Sensory nerve fibres forming ascending tracts in white matter of spinal cord are located in ____________.
Spinal nerves are usually ______
In humans, the number of spinal nerves are ______.
