Spinal Nerve Cross Section

Cervical or neck thoracic or chest lumbar or abdomen sacral or pelvis coccygeal or tailbone.

Spinal nerve cross section. The core consists mainly of two posterior dorsal horns which extend toward the posterolateral surfaces of the cord and two thicker anterior ventral horns which extend toward the anterolateral surfaces. Key areas of a cross section of the spinal cord include. The ventral root is the efferent motor root and carries motor information from the brain.

There are cervical thoracic and lumbar nerves. Spinal cord cross sectional anatomy. The gray matter which is primarily composed of nerve cell bodies has two regions on each side or butterfly wing within the cervical spine s region of the spinal cord.

Many of the peripheral nerves are named after the part of the spine where they join the spinal cord. Look no further than these interactive exam style. The white matter surrounds the gray matter in the spinal cord and contains cells coated in myelin which.

As they join they form the spinal nerves on the sides of the spinal cord. 12 thoracic segments forming 12 pairs of thoracic nerves 5 lumbar segments forming 5 pairs of lumbar nerves 5 sacral. Start quiz want to learn faster.

Openings and support structures. 8 cervical segments forming 8 pairs of cervical nerves c1 spinal nerves exit the spinal column between the foramen. General structure of a neuron nerve cell nose and nasal cavity.

General structure of a neuron nerve cell general organization of the nervous system. The spinal nerves are relatively large nerves that are formed by the merging of a sensory nerve root and a motor nerve root. When viewed as a cross section from above the spinal cord consists of a butterfly shaped or thick h shaped region of gray matter that sits in the middle of the white matter.