Concept explainers
(A)
To determine: The pairs of the spinal nerves present in the spinal cord and the ending of the spinal nerve.
Introduction: The spinal and the brain make up the major part of the central nervous system. The spinal is the tube-like structure that begins from the medulla oblongata of the brainstem and extends toward the lumbar region of the vertebral column. The reflexes of the spinal cord can function without the input of the brain.
(B)
To describe: The pair of spinal nerves that emerges between vertebrae C7 and T1.
Introduction: The spinal and the brain make up the major part of the central nervous system. The spinal cord is a tube-like structure that consists of 31 pairs of segments that each gives off the pairs of the spinal nerves.
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