Flashcards in Intro & Upper Cervical Deck (72)
At the birth the spine is ______?
What are the primary curves?
Thoracic and sacral kyphosis
What are the secondary curves?
Cervical and lumbar lordosis
What is the ideal posture?
Plum line (from: ear, cervical vertebra bodies, shoulder, lumbar vertebral bodies, posterior to hip axis, anterior to knee axis, anterior to lateral malleolus
What is the function/ importance of the articular disc?
Shock absorption & prevents bone on bone rubbing
Early phase of mouth opening includes
35-50% of ROM
condyle rolls posterior
body of mandible moves post & inferior
During early phase there is roll _____ and rotation ______.
Late phase opening of the mouth includes
final 50% ROM
move from rotation to translation
condyle & disc move together
maximal anterior stretch of the disc
During late phase there is ______ slide and _______ translation
Which vertebrae are the smallest and most mobile?
Where is the transverse foramina located?
In the transverse process
Which of the cervical vertebrae are irregular?
C1, C2, & C7
The primary function of the atlas is _____?
stability of head and allow for 5-15 degrees flexion/extension in the frontal plane.
The axis has: _______, ________, _______ and _________
body, pedicle, lamina and spinous process
What are the two large masses of the atlas joined by?
Joined by the anterior & posterior arches
The superior articular facet of the atlas is concave or convex? What does it articulate with?
articulates with convex occiput
The inferior articular facet of the atlas is: slightly_______, faces________ and is sloped ____________.
flat/ slightly concave, faces inferiorly and is sloped downward ~20*
The inferior auricular facet of the atlas articulates with what?
Articulates with the superior facet C2
Which cervical vertebrae has the largest TP?
What is the key attachment point for several small muscles to control fine movements?
TP of the atlas
The superior articular facet of the axis is?
What plane is the superior articular facet of the axis located in?
Oriented 20* from horizontal
Describe the arthrokinematic rule of the AO joint?
convex on concave
What is the primary movement of the AO joint?
True/False: The atlas always moves with the head.
What is the range of motion of the AO joint?
Flexion: 5* +/-
Extension: 10* +/-
(total 15* +/-)
Axial rotation: negligible - 5*
Lateral flexion: 5* +/-
For the AA joint the inferior atlantal facet is slightly ________ and the superior axial facet is slightly ______.
The primary motion of the AA joint is
Which plane is the AA oriented most closely to?