Cervical Spine Anatomy

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Presentation transcript:

Cervical Spine Anatomy

General Vertebral Anatomy Body Vertebral Arch Pedicles Laminae Vertebral Foramen Spinous Process Facets Superior Articulating Surface Inferior Articulating Surface Transverse Process Intervertebral Foramen

Distinguishing Features of Cervical Vertebrae Transverse foramina C1 transverse process Spinous Processes C6 and C7 C3-C6 = bifurcate None for C1 Articulating Facets

Atlas 1st Cervical Vertabrae Lack of Body Superior Articular Foveae Inferior Articulating Foveae Fovea Dentis

Axis C2 Dens Rotation between skull and atlas

C7 Body Spinous process Transverse Foramina Anterior element

Articulations within cervical region Lateral Atlantoaxial Joints Superior facets and inferior facets of atlas Flat and in transverse plance Rotation Side toward rotation Side away from rotation Median Atlantoaxial Joints Dens of axis and anterior arch of atlas Tectorial membrane Cruciform ligament

Articulations within cervical spine Body-to-body articulation Fibrocartilagenous Intervertebral Disk Annulus fibrosis Nucleus pulposis

Articulations within cervical spine Cervical facet joints Parallel to frontal plane 45 degrees to transverse plane Rotation

Ligaments within cervical spine Ligamentum Nuchae Interspinous Ligament Ligamentum Flava Posterior Atlanto-occipital membrane Intertransverse Ligament

Curvature of cervical spine Lordotic Curve

Cervical spine movement Flexion/Extension Atlanto-occipital Rotation Atlanto-axial joint

Brachial Plexus Nerve Roots Trunks Divisions Cords C5,6,7,8,T1 Upper Middle Lower Divisions Anterior Posterior Cords Lateral Medial

Brachial Plexus

Throat Anatomy 1. Thyroid gland 2. Trachea 3. Brachiocephalic artery 4. Common carotid artery 5. Internal jugular vein 6. Superior vena cava