Flashcards in Exam One Review Deck (47)
At what age do the epiphyseal plates fuse?
When do the pedicles fuse?
3-6 years old
When do the Laminae fuse?
In the first year of life
When do the SP fuse?
When do the TVP fuse?
Around age 16
Before 40yo, _____% of the load compresses on the cortex. After 40, it increases to _____%
Before 40, ____% of the load compresses on the cancellous bone. After 40, it changes to _____%.
Overall greatest ROM in the spine is in what section of the spine?
Greatest flexion and extension of facet joints is in what section of the spine?
Greatest overall ROM in the lumbar spine?
Greatest flexion and extension in Lumbar spine
L5 & S1
ROM associated with lumbar
Little lateral bending
ROM associated with thoracic spine
ROM associated with cervical
Greatest overall ROM
Intrinsic muscles of the back
Erector spinae (ILS)
Splenius capitis and cervices
Longus capitis and coli
Extrinsic muscles of the back
Intermediate extrinsic muscles of the back
Serratus posterior superior
Serratus posterior inferior
Transversospinal muscle group
Semispinalis muscles (3)
Suboccipital muscle group
Rectus capitis posterior major
Rectus capitis posterior minor
Obliquus capitis inferior
Obliquus capitis superior
Anterolateral Neck Muscles
Cervical Facet joints are oriented in what plane?
Thoracic facet joints are located in what plane?
Lumbar facet joints are oriented in what plane?
Cervical SAP orientation
Face superior and posterior - 45 degrees
Cervical IAP orientation
Face inferior and anterior - 45 degrees
Thoracic SAP orientation
Posterior and superior - 60 degrees from horizontal - 20 degree lateral rotation
Thoracic IAP orientation
Anterior and inferior - 60 degrees to horizontal - 20 degree medial rotation
Lumbar SAP orientation
Mostly medial - rotated 45 degree medially