Question

The number of spinal nerves in human is
A. 10 pairs
B. 12 pairs
C. 43 pairs
D. 31 pair

Answer 1

Spinal nerves are the mixed nerve that carries sensory and the automatic signals between the spinal cord and the body. These are the integral part of the peripheral nervous system. Here we are going to see the number of spinal nerves in the human body. Through some of the information, it could be found and analyzed.

Complete answer:
Spinal nerves are the major nerves of the human body. These are generally composed of the motor and more signals. As we already know, there are about 31 pairs of the spinal nerves in the human body. These include eight cervical, twelve thoracic, five lumbar, one coccygeal and five sacral nerves. The cervical nerves are formed from the cervical vertebrae. The lumbar nerves are from lumbar vertebrae. The sacral nerves are those that exits sacrum at the lower end of the vertebral column. The lumbar nerves are generally divided into the anterior and posterior divisions. And the coccygeal nerves are the nerves that are the 31st pair of the spinal nerves. This may arise from the medullaris and this anterior root also helps in the coccygeal plexus. This also transmits the motor commands from the central nervous system to the muscles of the peripheral nerve. So, from this it is clear that the number of spinal nerves present in humans is 31.

Hence, the correct answer is Option D.

Note:
Spinal nerves cause the contraction of the trapezius in order to the help from the head and shoulder. These are less complicated to its immediate predecessors. This also diminishes the ability in the usage of the muscles. These are some of the importance of the spinal nerves in the human body.