Unit 5 Spine and LE Flashcards
all vertebrae have what 8 things (with the exception of the atlas)
body, lamina, pedicles, transverse process, spinous process, canal, foramina, facets
the atlas does not have what 2 structures
spinous or transverse process
the dens is only on the
axis
the bodies of vertebrae start ____ at C spine and ____ as you descend down spine
start small at top and get bigger as you go down
what’s different about the spinal canal in regards to bodies of the vertebrea
the spinal canal is the opposite of the vertebrae, the spinal canal starts big and gets smaller as you descend
first joint in the spine
AO joint
the AO joint type
condyloid
AO joint has ___ dof
2
motions at AO joint
head nod (flex and extend) and side bend
AA joint is what type
pivot
AA joint does what motion only
rotation
why is AA joint motion only one motion
bc dens prevents flexion/ext
IV joint type
cart
each vert has ___ facets
4
facet joint type
synovial gliding
In C vertebrae, the facets do ___ and are in what plane
rotation and are in hor plane
In T vertebrae, the facets do ____ and are in what plane
do side bend and are in frontal plane
In L vert, the facets do ___ and are in what plane
do flexion/extension and are in sagittal plane
What role facets play in movement
the alignment of facets essentially guide the type of mvmt
The SI joint is what type
synovial gliding
What causes whiplash
An injury that occurs at the AA joint This joint (that is supposed to be rotation only) is flexed/extended which can damage the medulla
T or F, there is rotation at the lumbar spine
F - there is NO rotation at LUMBAR spine
How many vertebrae at each spinal section
C-7 T-12 L-5 S-5 C-1
50% of all head motion happens at what joint
AA
5 muscles located in the front-cervical area
R L L A S
Rectus capitus ant, longis capitus, longus coli, anterior scalenes, SCM
main motion of rectus capitus ant
does nodding of head at AA joint (cervical flexion)
main job of longus capitus and longus coli
main job is to stabilize cervical area (but also flexes)
AXNs of ant scalenes
Fl neck(both sides together) side bend (to same side) some rotation (to the same side)
axns of SCM
flexion
ipsilateral flexion to side
contralateral rotation
the 2 muscles that make up the side- cervical area
middle and post scalene
muscles that make up the back -cervical area
Rectus capitis post (maj/min) Obliques capitis (sup/inf) Interspinals Intertransversals Transverses spinal group Semispinalous Multifidus Short rotators Erector spinae Spinalis Longisimus Illiocostalis Splenius capitis Splenius cervicis
R O I I T E S S
TRANSVERSE SPINAL GROUP MUSCLES
SEMISPINALIS, MULTIFIDUS, ROTATORES
ERECTOR SPINAE GROUP
S, L, I (SPINALIS, LONGISMUS, ILIOCOSTALIS)
AXNS OF RECTUS CAP POST
ext of AO
axns of obliques capitis
ext of AO
axns of interspinals
neck ext
axns of cervical intertransversals
ipsilateral flexion
if both sides contract, just stabilization
axns of cervical transverse spinals
All do contralateral rotation (main axn)
When both sides contract together = extension
axns of spinalis (most medial)
extension only
axn of longismus and iliocostalis
ipsilateral flexion
ipsilateral rotation
both sides extension together
axns of splenius capitus
ipsilateral flexion
ipsilateral rotation -
both sided extension
axns of splenius cervicis
ipsil flexion
ipsil rotation
(both sides ext only)
muscles located lumbar-front
rectus abd
external obliques
internal obliques
axn of rectus abd
trunk flexion
axn of external obliques
both sides flex trunk
ipsilateral side bend
contralateral rotation
axn internal obliques
both sides flex trunk
ipsilateral flexion
ipsilateral rotation
Lumbar side muscles
transverse abdominus
quadratus lumborum
axns of transverse abd
Ipsilateral rotation
Both sides maintain interabd. Pressure with breathing
Supports visera
axns of QL
Elevates pelvis (hip hike)
Ipsilateral flexion
Both sides stabilizes trunk
lumbar posterior muscles
Interspinals Intertransversals Transverses spinal group Semispinalous Multifidus Short rotators Erector spinae Spinalis Longisimus Illiocostalis
axns of lumbar post muscles
all motions are same as cervical except they are in the lumbar region
intercostals are ___ muscles
thoracic - aid in breathing
N supply rectus cap ant
C1, C2
N supply longus cap
C1, C2, C3
N supply longus coli
C2-C6
N supply ant scalenes
C5, C6
N to SCM
spinal acc N XI
N to Rectus capitis post (maj/min) and Obliques capitis
suboccipital N
Nerve supply to all below: (cervical)
Interspinals Intertransversals Transverses spinal group Semispinalous Multifidus Short rotators Erector spinae Spinalis Longisimus Illiocostalis Splenius capitis Splenius cervicis
Dorsal primary rami (I I T E S S)
N supply to
Rectus abdominis
External oblique
Internal oblique
T7-T12
N supply to transverse abdominus
T7-T12
N supply to QL
T12, L1,2,3,4
N supply to all post lumbar muscles Interspinals Intertransversals Transverses spinal group Semispinalous Multifidus Short rotators Erector spinae Spinalis Longisimus Illiocostalis
dorsal primary rami
ROM cervical flexion
0-45/60
ROM cervical ext
0-60/80
ROM cerv rotation
0-50/70
ROM cervical lateral flexion
0-25/50
ROM lumbar flexion
0-30-45
ROM lumbar ext
0-30/45
ROM lumbar lateral flexion
0-30/45
iliopsoas actions (separate iliacus from psoas)
iliacus does hip flexion only
psoas major does hip flexion and lumbar flexion
nerve to iliacus
femoral
nerve to psoas major
L2 L3 and L4
list the 4 front hip muscles
iliopsoas, sartourious, rectus femoris, TFL
N to sartourious
femoral
actions of sartourious
hip and knee flexion, abduction, lateral rotation
actions of RF
hip flexion, knee ext
nerve to RF
femoral
TFL nerve
superior gluteal N
TFL axns
FBI (flexion, abduction, IR) hip
glut min and med nerve
superior gluteal n
axns glut min and med
abd, IR hip
List the adductors
pectineus, adductor longus, adductor brevis, gracilis, adductor magnus
nerve to adductors
pectineus is femoral
gracilis, add brevis, and longus are obturator n
adductor magnus is obturator AND sciatic N
what is unique about adductor magnus (axns)
bc it has fibers ant and post to the femur, it does BOTH hip flexion and ext (in addition to adduction)
powerful motions require what muscle for hip ext
glut max
glut max axns
hip ext and ER
submaximal activity (hip ext) uses what muscles
hamstrings
N to glut max
inf gluteal N
axns of hamstrings
hip ext and knee flexion
N to hamstrings
sciatic N