13. Back & Spine ANA Flashcards
Functions of back & spine
Supports head
Important attachment of muscles & ligaments
Ribs attachment
Encloses & protects spinal cord
Nag provide ng mobility/flexibility of trunk
Ability to transmit weight of head & body to LE
Ave length of vertebral column
M= 72 cm
F= minus 7 to 10 cm from male
total number of vertebra in infants
33
C7
T12
L5
S5
Coccygeal 5
total number of vertebra in adults
26
C7
T12
L5
S- fused to 1
Coccygeal - fused to 1
Orientation & angle of facet jts in cervical vertebra
Sup: sup & post
inf: inf & ant
>45deg
Orientation & angle of facet jts in thoracic vertebra
Sup: post & lat
inf: ant & medial
>60 deg
Orientation & angle of facet jts in lumbar vertebra
Sup: medial
inf: lateral
>90 deg
Part of IV disc that is gel like material
nucleus pulposus
Part of IV disc that is fibrocartilagenous pulp
annulus fibrosus
Protein found in nucleus pulposus
proteoglycan
Protein found in annulus fibrosus
Lamellae angles at 30 deg
What structures attaches to the outer surface of the annulus fibrosus
sharpey’s fibers
this is the force generated by the annulus once it is stretched
Hoop’s stretch
At what level can you find the widest pedicles?
L5
At what level can you find the narrowest pedicles?
T5