Final Exam Flashcards
(141 cards)
Sagittal plane/medial-lateral axis
Flexion
Extension
Frontal plane/anterior-posterior axis
Abduction
Adduction
Transverse plan/vertical axis
Internal rotation
External rotation
Open Kinematic Chain
Distal on proximal
Closed Kinematic Chain
Proximal on distal
1st Class Lever
Fulcrum btwn resistance force & effort force
MA → >1, <1, =1
2nd Class Lever
Fulcrum located @ 1 end
MA > 1
Designed for power
3rd Class Lever
Fulcrum located @ 1 end
MA < 1
Designed for ROM & speed
Coupling Patterns
Cervical
- lateral flexion & ipsilateral rotation
- rotation & ipsilateral lateral flexion
Thoracic
- none
Upper lumbar
- lateral flexion & contralateral rotation
Lower lumbar
- lateral flexion & ipsilateral rotation
Uncinate Processes form […] w/inferolateral part of […] to increase […]
Uncovertebral Joints
Superior vertebral body
Stability
Z joints made by articulating […] & […]
Inferior articular process
Superior articular process
Cervical IV Disc
- AF is thick anteriorly & tapers posteriorly
- Less NF bc its not bearing as much weight
- Manage compressive forces
Cervical Z Joint
Horizontally oriented → can manage more loads
Vertically oriented → cant manage compression well
More load w/ extension
Tectorial Membrane
Superior extension of PLL
Limits flexion
Helps maintain SC space
Cruciform Ligaments
Hugs odontoid to atlas
Thickest ligament in spine
Limits flexion
O-A Flexion
Posterior glide of occiput on atlas
Anterior glide of atlas on occiput
O-A Extension
Anterior glide of occiput on atlas
Posterior glide of atlas on occiput
A-A Joint
Most mobile segment of spine
Rotation >30° impacts contralateral vertebral artery
Rotation > 45° impacts ipsilateral vertebral artery
Cervical Spine Stability
- Most load bearing through discs & body anteriorly
- Most stability from muscles
- Ligaments stabilize @ end range
Lower Cervical Flexion
Anterior & superior movement of superior facet
Limited by Z joint capsule
Larger IV foramen, smaller canal
Lower Cervical Extension
Posterior & inferior glide of superior facet
Limited by ALL
Smaller IV foramen, very small canal
Lower Cervical Lateral Flexion
Compress ipsilaterally
Elongate contralaterally
Limited by contralateral ligaments & muscles
Lower Cervical Protrusion
Lower cervical flexion
Upper cervical extension
Lower Cervical Retraction
Lower cervical extension
Upper cervical flexion