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They are also known as the sacrospinalis group of muscles. These muscles lie on either side of the spinous processes of the vertebrae and extend throughout the lumbar, thoracic, and cervical regions. The erector spinae is covered in the lumbar and thoracic regions by the thoracolumbar fascia, and in the cervical region by the nuchal ligament.
superior part of mental spine of mandible (symphysis menti) dorsum of tongue, body of hyoid: lingual artery: hypoglossal nerve [CNXII] protrudes tongue: 2 3 genioglossus, middle fibers head, tongue (left/right) superior part of mental spine of mandible (symphysis menti) dorsum of tongue, body of hyoid: lingual artery: hypoglossal nerve [CNXII ...
The upper cervical spine has a curve, convex forward, that begins at the axis (second cervical vertebra) at the apex of the odontoid process or dens and ends at the middle of the second thoracic vertebra; it is the least marked of all the curves. This inward curve is known as a lordotic curve. A thoracic spine X-ray of a 57-year-old male.
In the thoracic region they are present between the transverse processes of the lower three thoracic vertebrae, and between the transverse processes of the last thoracic and the first lumbar. These are called the thoracic intertransversarii and are supplied by the posterior rami of the spinal nerves.
The spinal nerves arise from the spinal column. The top section of the spine is the cervical section, which contains nerves that innervate muscles of the head, neck and thoracic cavity, as well as transmit sensory information to the CNS. The cervical spine section contains seven vertebrae, C-1 through C-7, and eight nerve pairs, C-1 through C-8.
Sectional organization of spinal cord. The spinal cord is the main pathway for information connecting the brain and peripheral nervous system. [3] [4] Much shorter than its protecting spinal column, the human spinal cord originates in the brainstem, passes through the foramen magnum, and continues through to the conus medullaris near the second lumbar vertebra before terminating in a fibrous ...
Exercise for strengthening of the cervical, thoracic and lumbar spine [ edit ] The cervical , thoracic and lumbar spine is composed of a total of 24 presacral vertebrae and their main functions are to protect the spinal cord, provide an attachment site for many muscles of the body.
The long thoracic nerve arises from the anterior rami of cervical spinal nerves C5, C6, and C7. [1] [2] [3] The root from C7 may occasionally be absent. [4] The roots from C5 and C6 pierce through the scalenus medius, while the C7 root passes in front of the muscle. [citation needed]