ANA_LAB: Back MOINA Flashcards
origin of erector spinae
iliac crest, sacrum, transverse and spinous processes of vertebrae and supraspinal ligament
insertion of erector spinae
angles of the ribs, transverse and spinous processes of vertebrae, posterior aspect of the skull
nerve of erector spinae
segmentally innervated by dorsal primary rami of spinal nerves C1-S5
action of erector spinae
extends and laterally bends the trunk, neck and head
origin of iliocostalis
iliac crest and sacrum
insertion of iliocostalis
angles of the ribs
nerve of iliocostalis
dorsal primary rami of spinal nerves C4-S5
action of iliocostalis
extends and laterally bends the trunk and neck
origin of interspinales
upper border of spinous process
insertion of interspinales
lower border of spinous process above
nerve of interspinales
dorsal primary rami of spinal nerves C1-L5
action of interspinales
extend trunk and neck
origin of intertransversarii
upper border of transverse process
insertion of intertransversarii
lower border of transverse process above
nerve of intertransversarii
dorsal primary rami of spinal nerves C1-L5
action of intertransversarii
laterally bend trunk and neck
origin of longissimus
transverse process at inferior vertebral levels
insertion of longissimus
transverse process at superior vertebral levels and mastoid process
nerve of longissimus
dorsal primary rami of spinal nerves C1-S1
action of longissimus
extends and laterally bends the trunk, neck and head
origin of multifidus
sacrum, transverse processes of C3-L5
insertion of multifidus
spinous processes 2-4 vertebral levels superior to their origin
nerve of multifidus
dorsal primary rami of spinal nerves C1-L5
action of multifidus
extend and laterally bend trunk and neck, rotate to opposite side
origin of obliquus capitis inferior
spinous process of the axis
insertion of obliquus capitis inferior
transverse process of atlas
nerve of obliquus capitis inferior
suboccipital nerve (DPR of C1)
action of obliquus capitis inferior
rotates the head to the same side
origin of obliquus capitis superior
transverse process of atlas
insertion of obliquus capitis superior
occipital bone above inferior nuchal line
nerve of obliquus capitis superior
suboccipital nerve (DPR of C1)
action of obliquus capitis superior
extends the head, rotates the head to the same side
origin of rectus capitis posterior major
spinous process of axis posterior tubercle of atlas
insertion of rectus capitis posterior major
inferior nuchal line
nerve of rectus capitis posterior major
suboccipital nerve (DPR of C1)
action of rectus capitis posterior major
extends the head, rotate to same side
origin of rectus capitis posterior minor
posterior tubercle of atlas
insertion of rectus capitis posterior minor
inferior nuchal line medially
nerve of rectus capitis posterior minor
suboccipital nerve (DPR of C1)
action of rectus capitis posterior minor
extends the head
origin of rotatores
transverse processes
insertion of rotatores
long rotatores: spines 2 vertebrae above origin; short rotatores: spines 1 vertebrae above origin
nerve of rotatores
dorsal primary rami of spinal nerves C1-L5
action of rotatores
rotates the vertebral column to the opposite side
origin of semispinalis
transverse processes of C7-T12
insertion of semispinalis
capitis: back of skull between nuchal lines; cervicis & thoracis: spines 4-6 vertebrae above origin
nerve of semispinalis
dorsal primary rami of spinal nerves C1-T12
action of semispinalis
extends the trunk and laterally bends the trunk, rotates the trunk to the opposite side
origin of serratus posterior inferior
thoracolumbar fascia, spines of vertebrae T11- T12 and L1-L2
insertion of serratus posterior inferior
ribs 9-12, lateral to the angles
nerve of serratus posterior inferior
branches of the ventral primary rami of spinal nerves T9-T12
action of serratus posterior inferior
pulls down lower ribs
origin of serratus posterior superior
ligamentum nuchae, spines of vertebrae C7 and T1-T3
insertion of serratus posterior superior
ribs 1-4, lateral to the angles
nerve of serratus posterior superior
branches of the ventral primary rami of spinal nerves T1-T4
action of serratus posterior superior
elevates the upper ribs
origin of spinalis
spinous processes at inferior vertebral levels
insertion of spinalis
spinous processes at superior vertebral levels and base of the skull
nerve of spinalis
dorsal primary rami of spinal nerves C2-L3
action of spinalis
extends and laterally bends trunk and neck
origin of splenius
ligamentum nuchae and spines C7-T6
insertion of splenius
capitis: mastoid process & superior nuchal line laterally; cervicis: posterior tubercles of C1-C3 vertebrae
nerve of splenius
dorsal primary rami of spinal nerves C2-C6
action of splenius
extends and laterally bends neck and head; rotates head to same side
origin of splenius capitis
ligamentum nuchae and spines of C7-T6 vertebrae
insertion of splenius capitis
mastoid process and lateral end of the superior nuchal line
action of splenius capitis
extends and laterally bends the neck and head, rotates head to the same side
nerve to splenius capitis
dorsal primary rami of spinal nerves C2-C6
origin of splenius cervicis
ligamentum nuchae and spines of C7-T6 vertebrae
insertion of splenius cervicis
posterior tubercles of the transverse processes of C1-C3 vertebrae
nerve to splenius cervicis
dorsal primary rami of spinal nerves C2-C6
action of splenius cervicis
extends and laterally bends neck and head, rotates head to the same side
