CERVICAL Flashcards
Cervicocephalic
C0-C2
upper cervical spine
Cervicobrachial
C3-C7
lower cervical spine
Where greatest flexion-extension occurs
C5-C6
OPP
midway between flexion and extension
CPP
full extension
CP
side flexion and rotation> extension
Joints of Luschka or Uncinate Process
limits extension
IV discs
makes 25% of height
none in C1-C2
gives lordotic shape
Nucleus Pulposus
inner layer
compressive forces
Annulus Fibrosus
outer layer
tension
Atlanto-occipital Joint
yes joint
C0-C2 (occipital condyles and atlas)
Atlanto-Occipital Joint Actions
side flexion: 10
flexion-extension: 15-20
negligible rotation
ellipsoid
Alar Ligaments
limits flexion and rotation
major stabilizing ligament of C1-C2
Atlanto-axial Joint
no joint
C1-C2
Atlanto-axial Actions
flexion-extension: 10 deg
side flexion: 5 deg
rotation: 50 deg
pivot joint
Vertebral Artery
passes transverse process, starting at C6, entering as high as C4
20% of blood along with ICA (80%)
Movements stressing the Vertebral Artery
rotation and extension: 20
significant decrease in blood flow
4 areas where vertebral artery is greatly stressed
- transverse process of C1
- bony canals of vertebral transverse processes
- between C1-C2
- C1 going to the skull
Cervical Spondylosis
> 25 y/o
inc to 60%= 45 y/o
inc to 85%= >65 y/o
Cervical Disc Herniation
17-60
Cervical Spinal Stenosis
11-60 (30-60)
Hypertension
vertebrobasilar insufficiency
big red flag
Diabetes affecting blood
thickened blood causes nerve ischemia
Asthma (muscles)
tightness of scalenes
hypertrophy of SCM