This segment is ring-like structure connected by anterior and posterior arches.
Atlas (C1)
This biconvex joint primarily functions in the transverse plane for cervical rotation.
Atlantoaxial joint
The primary motions of this joint include flexion and extension, with roll and slide moving opposite directions.
Atlantooccipital joint
This membrane functions as a continuation of the ligamentum flavum from C0-C2.
Posterior atlantooccipital and atlantoaxial membranes
This group of muscles contain a high number of proprioceptors to maintain head position and optimize sensory organ function
Suboccipitals
The space where the vertebral artery passes through
Transverse foramen
Interbody joint
During extension of segments C3-C7, the vertebral body tilts and slides ______ and inferior facets slide _____.
Posterior
Inferior
This ligament connects the anterior arch of the atlas (C1) and posterior facets of the axis (C2) while functioning to prevent anterior translation of C1 on C2
Transverse ligament
These 4 muscles are part of the deep neck flexors, typically long with extension/extension-rotation syndrome.
Longus capitis, longus colli, rectus capitis anterior, rectus capitis lateralis
This landmark has a lateral groove for the spinal nerve that can be compromised with decreasing disc height or OA
Transverse process
Lateral flexion, rotation and posterior translation
In order to have motion in the cervical spine, this segment needs to have motion and should be examined.
T4
Fissures of the annulus fibrosis develop with age at the uncinate process to form this.
Uncovertebral cleft
These 2 muscles originate at the 1st rib and function as ipsilateral lateral flexors and contralateral rotators.
Anterior and middle scalenes
Portion of the vertebrae that extend posteromedial and form the vertebral foramen
These 2 segments are considered the keystone for ipsilateral lateral flexion and rotation coupling in the spine.
C2-C3
The superior and inferior facet so the atlas and axis are both oppositely oriented according to their name (ex. superior facet= superior orientation), but share the same orientation in the sagittal plane. Which segment is oriented medially and which is oriented laterally?
Atlas- medial
Axis- lateral
This ratio of disc height to vertebral body helps to promote mobility in the cervical spine.
2:5
Longus colli
Anterior and posterior tubercles
The superior and inferior facets of the zygopophyseal joints have opposite orientation to function 45 degrees from transverse plane. What are their orientations?
Superior facets- superior and posterior
Inferior facets- inferior and anterior
Lateral flexion is restricted by these 3 structures.
Joint capsule, contralateral intertransverse ligament, contralateral spinal lateral flexors
This portion of the ligamentum nuchae is continuous with the interspinous ligaments, acting as an attachment point for the fascia of the semispinalis capitis and splenius capitis
Ventral midline septum
The trapezius originates at the external occipital protuberance, medial superior nuchal line of the occiput, ligamentum nuchae and spinous processes of C7-T12 and inserts at these 3 sites.
Lateral 1/3 of clavicle, acromion and scapular spine