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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.
APPEARS IN
संबंधित प्रश्न
Differentiate between following pair with reference to the aspect in bracket.
cerebrum and spinal cord (arrangement of cytons and exons of neurons).
Where is this located?
Meninges
Choose the correct answer.
Number of spinal nerves in human beings ______________
Spinal cord and sympathetic ganglion of autonomous nervous system are connected by ______________.
Identify the odd item from the following series of words.
There are ______ pairs of cranial nerves and ______ pairs of spinal nerves.
Which neuron conducts impulse from the spinal cord to the effector organ?
How are cytons and axons arranged in the spinal cord?
Explain the formation of a typical spinal nerve with the help of a neat labelled diagram.
Mention where in the human body is the following located and state its main function:
Central canal
