-
origin of sternocleidomastoid
sternum and clavical
-
instertion of sternocleidomastoid
mastoid process
-
actions of sternocleidomastoid
bilaterally flexes the neck. unilaterally sidebends neck to same side and rotates to opposite side
-
nerve of sternocleidomastoid
spinal accessory nerve(cranial nerve XI) C2-C3
-
origin of scalenes
transverse processes of cervical vertebrae
-
insertion of scalenes
1st and 2nd ribs
-
actions of scalenes
bilaterally assists with neck flexion. unilaterally sidebends neck to same side
-
nerve of scalenes
lower cervical nerve
-
origin of rectus abdominus
pubis
-
insertion of rectus abdominus
costal cartilages of ribs 5-7
-
actions of rectus abdominus
trunk flexion and compression of the abdomen
-
nerve of rectus abdominus
T7-T12 intercostal nerves
-
origin of external obliques
lower eight ribs laterally
-
insertion of external obliques
iliac crest and linea alba
-
actions of external obliques
bilaterally trunk flexion and compression of abdomen. unilaterally sidebends trunk to same side and rotates to opposite side
-
nerve of external obliques
T8-T12 intercostal nerves, iliohypogastric and ilioinguinal nerves
-
origin of internal obliques
thoracolumbar fascia, iliac crest, and inguinal ligament
-
insertion of internal obliques
ribs 10-12, abdominal aponeurosis
-
actions of internal obliques
bilaterally trunk flexion and compression of abdomen. unilaterally sidebends trunk to same side and rotates to same side
-
nerve of internal obliques
T8-T12 intercostal nerves, iliohypogastric and ilioinguinal nerves
-
origin of transverse abdominis
thoracolumbar fascia, iliac crest, inguinal ligament, and last six ribs
-
insertion of transverse abdominis
abdominal aponeurosis and linea alba
-
action of transvese abdominis
compression of abdomen
-
nerve of transverse abdominis
T7-T12 intercostal nerves, iliohypogastric, and ilioinguinal nerves
-
origin of erector spinae
spinous processes, transverse processes, and ribs from the occiput to the sacrum and ilium
-
insertion of erector spinae
spinous processes, transverse processes, and ribs from the occiput to the sacrum and ilium
-
actions of erector spinae
bilaterally trunk extension. unilaterally sidebend trunk to same side
-
nerve of erector spinae
spinal nerves (specifically posterior 1 degree rami)
-
origin of quadratus lumborum
iliac crest
-
insertion of quadratus lumborum
transverse processes of L2-5 and 12th rib
-
action of quadratus lumborum
trunk sidebending
-
nerve of quadratus lumborum
T12-L1
|
|
