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K Neck & Trunk


erector spinae O spinous processes, transverse processes, and post ribs from the occiput to the sacrum and ilium
erector spinae I spinous processes, transverse processes, and posterior ribs from the occiput to the sacrum & ilium
erector spinae A bilateral: ext unilateral: lat bend
transversospinalis (multifundus) O transverse processes
transversospinalis (multifundus) I spinous processes of vertebra above
transversospinalis (multifundus) A bilateral: ext trunk unilateral: rotate trunk to opposite side
quadratus lumborum O iliac crest
quadratus lumborum I 12th rib, transverse processes of all lumbar vertebrae
quadratus lumborum A trunk lateral bending
sternocleidomastoid O sternum & clavicle
sternocleidomastoid I mastoid process
sternocleidomastoid A bilateral: flexes neck, hyperext head unilateral: laterally bends the neck; rotates head to opposite side
sternocleidomastoid N accessory nerve (cranial XI); 2nd & 3rd cervical nerves
scalenes O transverse processes of the cervical vertebrae
scalenes I 1st & 2nd rib
scalenes A bilateral: assists in neck flexion unilateral: neck lateral bending
splenius capitis O lower 1/2 of nuchal ligament; spinous processes of C7-T3
splenius capitis I lateral occipital bone; mastoid process
splenius capitis A bilateral; ext head & neck unilateral: rotate & laterally bend head to same side
splenius cervicis O spinous processes of T3-T6
splenius cervicis I transverse processes of C1-C3
splenius cervicis A bilateral: ext head unilateral: rotate & laterally bend neck to same side
rectus abdominis O pubis
rectus abdominis I xiphoid process & costal cartilages of 5th, 6th & 7th ribs
rectus abdominis A trunk flexion; compression of abdomen
external oblique O lower 8 ribs laterally
external oblique I iliac crest & linea alba
external oblique A bilateral: trunk flexion; compression of abdomen unilateral: trunk lateral bending; rotation to opposite side
internal oblique O inguinal ligament, iliac crest, thoracolumbar fascia
internal oblique I 10th, 11th, 12th ribs; abdominal aponeurosis
internal oblique A bilateral: trunk flexion; compression of abdomen unilateral: trunk lateral bending; rotation to same side
transverse abdominis O inguinal ligament, iliac crest, thoracolumbar fascia & last 6 ribs
transverse abdominis I abdominal aponeurosis & linea alba
transverse abdominis A compression of abdomen
Created by: jessigirrl4



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