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 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.

Detailed explanation-3: -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-4: -The nerves arising directly from the spinal cord are called the spinal nerves. There are 31 pairs of spinal nerves in humans: 8 cervical, 12 thoracic, 5 lumbar, 5 sacral, and 1 coccygeal.