lecture 14: conditions of the back Flashcards
what are the functions of the spine
- Upright posture
- Allows movement
- Protects spinal cord
- Muscle/ligament attachment
how many vert in the cervical spine
7 vert
how many nerve roots in the cervical spine
8 nerve roots
what are the vertbetrea responnsible for rotation in the cervical
c1 (atlas) and c2 (axis)
which vert has an attached to the ribs
thoracic
the thoracic cage incloses what
tthe heart and lungs
is there alot of rotatation at the lumbar
no
why is there minimal rotation in the lumbar spine
because the facet joints are vertical which also limit extension
why are the bodies of lumbar vert large
for weight bearing
what are the functions of the intervetebral discs
• Allows movement
• Shock absorption
• Increases space for transverse
foramen
what happens to the transverse foramen if there is disk degeretation
it can cause impingments of nerves by decreasing the space
in flexion, what position foes the disc move
backwards
in extension, what postion does the disk move
moves anterioly
what vertebrae are sprains more common in cervical or lumbar
cervical
how is anterior long lig stretched
with extension
how are the interspinous. posterior long lig and supraspinous ligs strtecthed
with flexion
how is the intertranse ligs stretched
by side beining
what is the position of brachial plexus
c5-t1
what are some important muscles of the cervical spine
longus colli SCM uppe rtraps suboccipital lev scap
what muscles of the cervical spine tightten witth instability/whiplash
SCM
upper traps
suboccipital
lev scap
what is the problem with the disk slipping posteriorly
because it can compromise the SC
true or false: stenosis can occur anywhere in the spine
true
what position is more comfortable for those wtih stenosis
flexion
what is stenosis
decreased space in the interverbtebral formane
stenosis is only aquired
false, also congenital
aquired stenosis is secondary to what
osteophyte formation
what are the SS of stenosis
Quadriplegia,
burning/tingling/numbness,
motor changes, pain in area
what position is more comfortable for people with disc herniation
extension
what is the MOI for whiolash
whiplash, repetitive flexion or
extension, compression
what is the most common disc degrenation
posterior lateral
what are the SS of disc hernation
radiating pain, pain with
Valsalva maneuver
what location is mosre common in the L spine for disc herniation and what age
L4/L5 and L5/S1 (30-50)
cervical spine disc herniation is more common in what population
older individuals
what happens to the nucleus polposus in disc herniation
goes through annulus fibrosis
disc herniation is assocaited with tears of what
annulus fibrosus
what is prolapse in disc herniation
nucleus finds a way thorugh the annulus fibfrosus
what is extrusion in disc herniation
material moves into spinal cord (may impinge)
what is sequesteration in disc hernation
matter gets further into spinal cord, can migrate
is generative disk disease chronic or acute
chronic
what is the MOI for degenrative disc diease
compression, high impact,
age
what are the SS for degenrative disc disease
radicular pain, loss of motor
function, pain with Valsalva
maneuver
where is the dermatonme for L1-L2
Front of thigh and
groin to knee
what area of the spine is assocaited with dermatone and sensory loss of Front of thigh and groin to knee
L1/L2
what is the myotome weakness for L1/L2
psoas/adductors
what area of the lumbar spine is assocaited with myotome weakness of psoas and adductors
L1-L2
what is the dermatome for L3-L4
Ant mid thigh over
patella and medial
lower leg to great
toe
what area of the lumbar spine is assocaitied with the dermatone Ant mid thigh over
patella and medial lower leg to great toe
L3-L4
what is the mytome weakness for L3L4
Ankle dorsiflexion
what part of the lumbar spine is assocaited with the mytoine weakness of Ankle dorsiflexion
L3-L4
what is the dematone for L4/L5
Lateral thigh, anterior leg, top of foot, and middle three toes
what part of the lumbar spine is associated with sensory loss of Lateral thigh,
anterior leg, top of foot, and middle three toes
l4/l5
what is the myotone for L4L5
toe extension
what part of the lumbar spine is asosciated with myotome weakness of toe extension
l4/l5
what is the dermatone for l5-s1
Posterior lateral thigh and lower leg to lateral foot and 5th toe
what part of the spine is assocaited with the sensory loss of Posterior lateral thigh and lower leg to lateral foot and 5th toe
l5/s1
what is the mytome weakness for l5/s1
Ankle plantar flexio/n
what part of the spine is assocaited with myotone weakness of Ankle plantar
flexion
l5/s1
what is the dermatome for c1/c2
Top of head, forehead