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Cervical and thoracic biomechanics Questions | With Complete Solutions
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Cervical and thoracic biomechanics Questions | With Complete Solutions
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Cervicaland
thoracic
biomechanics
____________________
is
the
second
most
motion
available
at
thoracic
level
-
CORRECT
ANSWER-Lateral
flexion
According
to
Fryette's
law,
side
bending
at
C2-7
is
coupled
with
rotation
in
the
_______
direction
-
CORRECT
ANSWER-same
Alar
is
relaxed
in
__________
Taut
in____
-
CORRECT
ANSWER-Relaxed
-
Neutral
Taut
-
flexion
and
rotation
Anterior
deep
muscles
-
CORRECT
ANSWER-Longus
capitis
Rectus
Capitis
Anterior
Longus
Colli
AO
coupled
motion
-
CORRECT
ANSWER-Opposite
direction
(
Type
1)
(SB
causes
ROT
to
contralateral
side)
AROM
of
thoracic
spine
-
CORRECT
ANSWER-Flex
20-45
Ext
25-45
Lat
flex
20-40
Rot
35-50
Both
surfaces
of
the
atlas
and
axis
are
_________
in
an
AP
orientation
-
CORRECT
ANSWER-Convex
(Bi-convex)
C0-1
has
this
roll
and
glide
in
ext
(about
10
deg)
-
CORRECT
ANSWER-Head
rolls/rotates
backwards
Occipital
condyles
glide
forward
C0-1
has
this
roll
and
glide
in
flexion
(about
5
deg)
-
CORRECT
ANSWER-Head
rolls/rotates
anteriorly
occipital
Condyles
glide
posterior/superior
C1-2
rotation
has
this
many
degrees
and
this
percentage
of
total
C
spine
rotation
-
CORRECT
ANSWER-About
45
degrees
50-60%
of
C
spine
rot
Cervical
regions
-
CORRECT
ANSWER-Craniocervical
(Upper)
Cervicobrachial
(Lower)
Cervicobrachial
components
-
CORRECT
ANSWER-C2-7
(FSU) Discs
give
lordotic
shape
(Nucleus
buffers
compression)
(Annulus
Fibrosis:
withstands
tension)
Craniocervical
components
-
CORRECT
ANSWER-Occipital-Atlanto
(C0-1)
Yes
Atlanto-Axial
(C1-2)
No
Describe
bucket
handle
motion
-
CORRECT
ANSWER-middle
ribs,
increase
transvers
diameter
Elevation
and
eversion
of
ribs
(flare)
Lower
part
of
thorax
widens
Describe
extension
movement
of
vertebra
at
the
C2-7
joints
-
CORRECT
ANSWER-Posterior
sagittal
rotation
(tilt)
and
posterior
translation
Inferior
facet
slides
down
and
back
on
the
superior
facets
Describe
flexion
movement
of
vertebra
at
the
C2-7
joints
-
CORRECT
ANSWER-Anterior
sagittal
rotation
(tilt)
and
anterior
translation
Inferior
facets
slide
up
and
forward
on
superior
facets
Describe
pump
handle
motion
-
CORRECT
ANSWER-Upper
ribs,
increase
A-P
diameter
Post
rotation
of
ribs,
elevate
anterior
portion
Ribs
become
horizontal,
sternum
swings
forward
Describe
rib
motion
during
thoracic
extension
-
CORRECT
ANSWER-Posterior
rotation
and
inferior
glide
of
the
rib
at
CT
joint
Anterior
portion
moves
superiorly
Describe
rib
motion
during
thoracic
flexion
-
CORRECT
ANSWER-Anterior
rotation
and
superior
glide
of
the
rib
at
CT
joint
Anterior
portion
of
ribs
move
inferiorly
Describe
rib
motion
during
thoracic
rotation
-
CORRECT
ANSWER-Ipsilateral
direction
rib
rotates
anteriorly,
translates
superiorly
Contralateral
rib
rotates
posteriorly ,
translates
inferiorly
Describe
vertebral
motion
during
thoracic
extension
-
CORRECT
ANSWER-Posterior
sagittal
rotation
and
posterior
Inferior
facets
slide
posteriorly
and
inferiorly
describe
vertebral
motion
during
thoracic
flexion
-
CORRECT
ANSWER-anterior
sagittal
rotation
and
ant
translation
Inferior
facets
slide
up
and
forward
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