Collect the information about cranial nerves. Spinal nerves from internet or from your school library.
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Spinal Nerves
In rabbit there are 37 pairs of spinal nerves, while in frog there are 9 or 10 pairs of spinal- nerves.
In Human only 31 pairs of spinal- nerves are found. Each spinal nerve is mixed type and arises from the roots of the horns of gray matter of the spinal cord.
In dorsal root only afferent or sensory fibres and in ventral root efferent or motor fibres are found.
Both the roots after moving for distance in the spinal cord of vertebrates combine with each other and come out from the Inter verterbal foramen in the form of spinal nerves.
As soon as the spinal nerves come out of the inter vertebral foramen they divide into 3 branches:
Cranial nerves are the nerves that emerge directly from the brain, in contrast to spinal nerves (which emerge from segments of the spinal cord).10 of 12 of the cranial nerves originate in the brainstem. Cranial nerves relay information between the brain and parts of the body, primarily to and from regions of the head and neck.
In rabbit there are 37 pairs of spinal nerves, while in frog there are 9 or 10 pairs of spinal- nerves.
In Human only 31 pairs of spinal- nerves are found. Each spinal nerve is mixed type and arises from the roots of the horns of gray matter of the spinal cord.
In dorsal root only afferent or sensory fibres and in ventral root efferent or motor fibres are found.
Both the roots after moving for distance in the spinal cord of vertebrates combine with each other and come out from the Inter verterbal foramen in the form of spinal nerves.
As soon as the spinal nerves come out of the inter vertebral foramen they divide into 3 branches:
Cranial nerves are the nerves that emerge directly from the brain, in contrast to spinal nerves (which emerge from segments of the spinal cord).10 of 12 of the cranial nerves originate in the brainstem. Cranial nerves relay information between the brain and parts of the body, primarily to and from regions of the head and neck.
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