GENERAL HISTOLOGY

Detailed explanation-1: -In total, there are 31 pairs of spinal nerves grouped regionally by spinal region. More specifically, there are eight cervical nerve pairs (C1-C8), twelve thoracic nerve pairs (T1-T12), five lumbar nerve pairs (L1-L5), 5 sacral (S1-S5), and a single coccygeal nerve pair.

Detailed explanation-2: -There are 31 pairs of spinal nerves and roots. Eight pairs of cervical nerves exit the cervical cord at each vertebral level. One member of the pair exits on the right side and the other exits on the left. The first cervical root exits above the C1 vertebra.

Detailed explanation-3: -There are 31 pairs of spinal nerves (8 cervical, 12 thoracic, 5 lumbar, 5 sacral, and 1 coccygeal). Because there are only seven cervical vertebrae, the first seven cervical nerves exit above the same numbered cervical vertebrae.

Detailed explanation-4: -The bilateral coccygeal nerves, Co, are the 31st pair of spinal nerves. It arises from the conus medullaris, and its ventral ramus helps form the coccygeal plexus. It does not divide into a medial and lateral branch.

Detailed explanation-5: -There are 31 spinal nerve pairs in the human body and they originate in between the spinal vertebrae. The spinal vertebrae and nerves are divided into cervical, thoracic, lumbar, sacral, and coccygeal sections. The sections innervate specific regions of the body such as: cervical: head, neck, arms.