Movement Science: muscles for test 1 Flashcards
what do the traps do UNI and BILATERALLY
B: neck ext
UNI: ipsilateral sb and contra rot
what does the levator muscles do
elevates and downward rot of scalp
ipsi SB and rot
what kind of cross section and moment arm does the splenius capitus and cervicis have
large
what does the splenius capitus and cervicis do B and UNI
B: ext
UNI: ipsi ROT
what does the semispinalis capitus and cervicis do
ext and main lordosis
what does the longissimus capitus and cervicis do B and UNI
B: frontal plan stabilizers
UNI: ipsi DB
what do the suboccipital muscles do B and UNI
B: occipital ext
UNI: ipsi rot and sb of occiput and atlas
what do the anterior scalenes do B and UNI
B: flex
UNI: ipsi SB and ROT
what do the middle scalenes and posterior scalenes do UNI
sb
what does the SCM do B and UNI
B: flex
UNI: ipsi sb and contra rot
what do the rectus capitis anterior and lateral do B
flx
what do the rotatores do
ipsi SB and contra ROT
what does the multifidus do at the T spine and L spine
T: contra rot
L: ext
what does the quadratus lumborum do B and UNI
B: frontal plane stabilization
UNI: ipsi SB
what does the rectus abdominus do B and UNI
B: flex trunk
UNI: ipsi sb
what do the internal obliques do
ipsi sb and rot
what does the external oblique do
ipsi sb and contra rot
what are the prime movers of lateral flexion
iliocostalis group
internal oblique
external oblique
what are the prime movers for ipsilaterla rotation
splenius
cervicis/ capitis
internal oblique
what are the prime movers for contralateral rotation
external oblique
SCM
what are the prime movers for flexion
rectus abdominis
external and internal oblique
SCM
what is in the erector spinae
longissimus and iliocostalis
what does the superficial erector spinae do B and UNI
B: extend
UNi: ipsi sb/rot
what do the deep fibers of the erector spinae do
create posterior compressive and shear forces which counteract with anterior shear forces
what synergistically work to stabilize head with traps to allow distal contraction of traps on scapula
longus capitis and coli
what resist lordotic position of the cervical spine
levator
longissimus capitis and cervicis have ____ moment arm which causes poor ____
small
extension
