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Anatomy of the Cervical Spine. Physician Name Physician Institution Date. Cervical Spine Anatomy. Primary function Mobility, support, and protection of spinal canal and neural structures. 1. 2. 3. 4. 5. 6. 7. Cervical Spine Anatomy. Vertebrae (7) Intervertebral discs (6)

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anatomy of the cervical spine

Anatomy of the Cervical Spine

Physician Name

Physician Institution

Date

cervical spine anatomy
Cervical Spine Anatomy
  • Primary function
    • Mobility, support, and protection of spinal canal and neural structures
cervical spine anatomy3

1

2

3

4

5

6

7

Cervical Spine Anatomy
  • Vertebrae (7)
  • Intervertebral discs (6)
  • Pairs of exiting nerve roots (8)
  • Cervical lordosis Occ-C7 averages 40°
    • Most of the lordosis occurs at the C1-C2 segment
cervical spine anatomy4
Cervical Spine Anatomy
  • Approximately 50% of flexion-extension motion occurs at occiput-C1
  • Approximately 50% of rotation occurs at C1-C2
  • Lesser amounts of flexion-extension, rotation, and lateral bending occur segmentally between C2-C7
cervical spine anatomy6

Occipital condyles

Foramen magnum

Cervical Spine Anatomy
  • Atypical vertebral
  • structure C1 (atlas)
  • Vertebral canal/foramen
  • Anterior arch
  • Anterior tubercle
  • Transverse process
  • Posterior arch
  • Transverse foramen
  • Lateral mass

Inferior

Superior

cervical spine anatomy7
Cervical Spine Anatomy
  • Occiput-C1 segment
    • The occiput-C1 joints are synovial joints comprising the convex occipital condyles, which articulate with the concave lateral masses of C1
cervical spine anatomy8
Cervical Spine Anatomy
  • Occiput-C1 segment
    • Motion at the occiput-C1 segment is restricted primarily to flexion-extension due to bony structures, ligamentous constraints, and the absence of an intervertebral disc
cervical spine anatomy9
Cervical Spine Anatomy
  • Atypical cervical
  • vertebra C2 (axis)
  • Odontoid process or dens
  • Vertebral canal/foramen
  • Facet joints
  • Transverse process
  • Transverse foramen
  • Bifid spinous process
  • Lamina

anterior view

posterior view

cervical spine anatomy10
Cervical Spine Anatomy
  • The odontoid process of the axis (C2) extends cranially to form the axis of rotation with atlas (C1)
cervical spine anatomy11
Cervical Spine Anatomy
  • C1-C2 segment
    • The primary motion at the C1-C2 joint is rotation
cervical spine anatomy12
Cervical Spine Anatomy
  • C1-C2 segment
    • The primary motion at the C1-C2 joint is rotation
cervical spine anatomy13
Cervical Spine Anatomy
  • Ligaments
    • The cervical spine also features a complex arrangement of ligaments to supplement its structure and mobility
cervical spine anatomy14
Cervical Spine Anatomy
  • Ligaments
    • Anterior longitudinal ligament
    • Posterior longitudinal ligament
    • Ligamentum flavum
    • Intertransverse ligaments
    • Interspinous ligaments
    • Ligamentum nuchae
cervical spine anatomy15
Cervical Spine Anatomy
  • Ligaments
    • Anterior longitudinal ligament
    • Posterior longitudinal ligament
    • Ligamentum flavum
    • Intertransverse ligaments
    • Interspinous ligaments
    • Ligamentum nuchae
cervical spine anatomy16
Cervical Spine Anatomy
  • Ligaments
    • Anterior longitudinal ligament
    • Posterior longitudinal ligament
    • Ligamentum flavum
    • Intertransverse ligaments
    • Interspinous ligaments
    • Ligamentum nuchae
cervical spine anatomy17
Cervical Spine Anatomy
  • Ligaments
    • Anterior longitudinal ligament
    • Posterior longitudinal ligament
    • Ligamentum flavum
    • Intertransverse ligaments
    • Interspinous ligaments
    • Ligamentum nuchae
cervical spine anatomy18
Cervical Spine Anatomy
  • Ligaments
    • Anterior longitudinal ligament
    • Posterior longitudinal ligament
    • Ligamentum flavum
    • Intertransverse ligaments
    • Interspinous ligaments
    • Ligamentum nuchae
cervical spine anatomy19
Cervical Spine Anatomy
  • Ligaments
    • Anterior longitudinal ligament
    • Posterior longitudinal ligament
    • Ligamentum flavum
    • Intertransverse ligaments
    • Interspinous ligaments
    • Ligamentum nuchae
cervical spine anatomy20
Cervical Spine Anatomy
  • Neural elements
    • 8 pair of cervical nerves
    • Exit the spinal canal superior to the vertebrae for which they are numbered
      • C1 nerves exit the canal between Occ & C1
      • C2 nerves exit the canal between C1 & C2
      • C8 nerves exit the canal between C7 & T1
cervical spine anatomy21
Cervical Spine Anatomy
  • Arteries
    • Carotid arteries
      • Located anterior and bilateral to the spine
    • Vertebral arteries
      • Enter the transverse foramen at C6 and continue through C1
cervical spine anatomy22
Cervical Spine Anatomy
  • Veins
    • Jugular veins
      • Located bilateral and anterior to the spine.
    • Vertebral veins
      • Located within the transverse foramen of C1-C7
cervical spine anatomy23
Cervical Spine Anatomy

Neural and Circulatory Elements