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56 Cards in this Set
- Front
- Back
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splenius capitis
Origin |
ligamentum nuchae and spines of c7-t3 or t4 vertebrae
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Splenius capitis
Action |
alone: laterally bends and rotates head to active side
together: extend head & neck |
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Splenius capitis
Innervation |
dorsal rami of spinal nerves
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Splenius capitis
Insertion |
mastoid process and lateral 1/3 of the superior nuchal line
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splenius cervicis
Origin |
ligamentum nuchae and spines of c7-t3 or t4 vertebrae
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splenius cervicis
Innervation |
dorsal rami of spinal nerves
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splenius cervicis
Action |
alone: laterally bends and rotates head to active side
together: extend head & neck |
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splenius cervicis
Insertion |
tubercles of the transverse processes of c1-c3 or c4 vertebrae
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iliocostalis
Origin |
broad tendon from posterior iliac crest, sacrum, sacral and inferior lumbar spinous processes, and supraspinous ligament (iliac crest and sacrum
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iliocostalis
Insertion |
lumborum, throacis, and cervicis: angles of the ribs and cervical transverse processes
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iliocostalis
Action |
bilaterally: extends vertebral column and neck
unilaterally: and laterally bends vertebral column |
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iliocostalis
Innervation |
dorsal rami of spinal nerves
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longissimus
Origin |
broad tendon from posterior iliac crest, sacrum, sacral and inferior lumbar spinous processes, and supraspinous ligament (transverse process at inferior vertebral levels)
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longissimus
Insertion |
thoracis, cervicis, and capitis: transverse processes in thoracic and cervical regions and mastoid process
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longissimus
Action |
bilaterally: extends vertebral column and neck
unilaterally: and laterally bends vertebral column |
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longissimus
Innervation |
dorsal rami of spinal nerves
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spinalis
Origin |
broad tendon from posterior iliac crest, sacrum, sacral and inferior lumbar spinous processes, and supraspinous ligament (spinous processes at inferior vertebral levels)
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spinalis
Insertion |
thoracis, cervicis, and capitis: spinous processes of upper thoracic region, occipital bone, and base of the skull
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spinalis
Innervation |
dorsal rami of spinal nerves
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spinalis
Action |
bilaterally: extends vertebral column and neck
unilaterally: and laterally bends vertebral column |
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semispinalis
Origin |
transverse processes of c4-t12
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semispinalis
Action |
extends head and thoracic and cervical regions of vertebral column and rotates them contralaterally
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semispinalis
Innervation |
dorsal rami of spinal nerves
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semispinalis
Insertion |
thoracis, cervicis, and capitis: occipital bone and spinous processes in thoracic and cervical regions
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multifidus
Origin |
sacrum, ilium, transverse processes of t1-t3, articular processes of c4-c7
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multifidus
Insertion |
spinous processes 2-4 vertebral levels superior to their origin
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multifidus
Action |
stabilizes vertebrae during local movements of vertebral column
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multifidus
Innervation |
dorsal rami of spinal nerves
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Rotatores
Origin |
transverse processes (best developed in thoracic region)
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Rotatores
Insertion |
junction of lamina and transverse process or spinous process of vertebrae above their origin (spanning 1-2 segments)
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Rotatores
Action |
stabilize vertebrae and assist w/ local extension and rotary movements of vertebral column (may function in proprioception)
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rotatores
Innervation |
dorsal rami of spinal nerves
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interspinales
Origin |
superior surfaces of cervical and lumbar spinous processes
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interspinales
Insertion |
inferior surface of spinous process above
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interspinales
Innervation |
dorsal rami of spinal nerves
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interspinales
Action |
aids in extension and rotation of vertebral column
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intertransversarii
Origin |
transverse processes of cervical and lumbar vertebrae
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intertransversarii
Insertion |
transverse processes of adjacent vertebrae
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intertransversarii
Action |
aid in lateral bending of vertebral column
bilaterally: stabilize vertebral column |
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intertransversarii
Innervation |
dorsal and VENTRAL rami of spinal nerves
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External Oblique
Origin |
External Surfaces of 5th-12th ribs
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External Oblique
Insertion |
Linea Alba, pubic tubercle, and anterior half of iliac crest
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External Oblique
Innervation |
Inferior six thoracic nerves and subcostal nerves
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External Oblique
Action |
Compress and support abdominal viscera, flex and rotate trunk
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Internal Oblique
Origin |
Thoracolumbar fascia, anterior 2/3 of iliac crest, and lateral 1/2 of inguinal ligament
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Internal Oblique
Insertion |
Inferior borders of 10th-12th ribs, linea alba, and pectin pubis via the conjoint liagment
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Internal Oblique
Innervation |
Ventral rami of inferior 6 thoracic nerves and first lumbar nerves
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Internal Oblique
Action |
Compress and support abdomnial viscera, flex and rotate the trunk
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Transverse Abdominis
Origin |
Internal surfaces of 7th-12th costal cartilages, thoracolumbar facia, iliac crest, and lateral 1/3 of inguinal ligament
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Transverse Abdominis
Insertion |
Linea alba with aponeruosis of internal oblique, pubic crest and pectin pubis via the conjoint ligament
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Transverse Abdominis
Innervation |
Ventral rami of inferior 6 thoracic nerves and first lumbar nerves
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Transverse Abdominis
Action |
Compress and support abdominal viscera
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Rectus Abdominis
Origin |
Pubic symphysis and pubic crest
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Rectus Abdominis
Insertion |
Xiphoid process and 5th-7th costal cartilages
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Rectus Abdominis
Innervation |
Ventral rami of inferior 6 thoracic nerves
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Rectus Abdominis
Action |
Flexes trunk and compresses abdominal viscera
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