Deep Back Muscles Flashcards
Serratus Posterior Superior
(attachment)
- Nuchal ligament
- Spinous processes of the cervical and thoracic vertebrae
AND
-upper limbs
Serratus Posterior Superior
(innervation)
Upper Intercostal nerves (T2-T5)
Serratus Posterior Superior
(action)
Elevates ribs
Serratus Posterior Inferior
(attachment)
Spinous processes of thoracic and lumbar vertebrae
AND
lower ribs
Serratus Posterior Inferior
(innervation)
Lower Intercostal nerves (T9-T11)
AND
Subcostal nerve (T12)
Serratus Posterior Inferior
(action)
Depresses ribs
Splenius capitis
(attachment)
- nuchal ligament
- spinous processes of cervical and thoracic vertebrae
AND
-mastoid process
Splenius capitis
(innervation)
Posterior Rami of cervical spinal nerves (C1-C8)
Splenius capitis
(action)
Unilaterally:
Laterally Bends and Rotates head and neck
Bilaterally:
Extends head and neck
Splenius cervicis
(attachment)
Spinous processes of thoracic vertebrae
AND
Transverse processes of cervical vertebrae
Splenius cervicis
(innervation)
Posterior Rami of cervical spinal nerves (C1-C8)
Splenius cervicis
(action)
Unilaterally:
Laterally bends and rotates head and neck
Bilaterally:
Extends head and neck
Spinalis
(innervation)
Posterior rami of cervical, thoracic, and lumbar spinal nerves (C1-L5)
Spinalis
(action)
Unilaterally:
Laterally bends vertebral column
Bilaterally:
Extends vertebral column
Longissimus
(attachment)
- Iliac crest
- Posterior surface of sacrum
- Spinous processes of lumbra vertebrae
AND
- Ribs between tubercle and angle
- Transverse processes of cervical vertebrae
- Mastoid process
Longissimus
(innervation)
Posterior rami of cervical, thoracic, and lumbar nerves (C1-L5)
Longissimus
(action)
Unilaterally:
Laterally bends the vertebral column
Bilaterally:
Extends vertebral column
Iliocostalis
(attachment)
- Iliac crest
- Posterior surface of sacrum
AND
- Angles of ribs
- Transverse processes of cervical vertebrae
Iliocostalis
(innervation)
Posterior rami of cervical, thoracic, and lumbar nerves
(C1-L5)
Iliocostalis
(action)
Unilaterally:
Laterally bends vertebral column
Bilaterally:
Extends vertebral column
Semispinalis
(attachment)
Transverse processes of cervical and thoracic vertebrae
AND
capitis: occipital bone b/n sup and inf nuchal lines
cervicis: spinous processes of cervical vertebrae
thoracis: spinous processes of thoracic vertebrae
Semispinalis
(innervation)
Posterior rami of cervical and thoracic spinal nerves
(C1-T12)
Semispinalis
(action)
Unilaterally:
rotates head and vertebral column
Bilaterally:
extend head and vertebral column
Multifidus
(attachment)
Posterior sacrum, posterior superior iliac spine, mammillary processes of lumbar vertebrae, transverse processes of thoracic vertebrae, and articular processes of cervical vertebrae
AND
spinous processes of all vertebrae
Multifidus
(innervation)
Posterior rami of spinal nerves (C1-L5)
Multifidus
(action)
Extend and rotate vertebral column
Rotatores
(attachment)
-Transverse processes of all vertebrae
AND
-Lamina of all vertebrae
Rotatores
(innervation)
Posterior rami of all spinal nerves (C1-L5)
Rotatores
(action)
extend and rotate vertebral column
Interspinales
(attachment)
Spinous processes of all vertebrae
AND
Spinous processes of all vertebrae
Interspinales
(innervation)
Posterior rami of all spinal nerves (C1-L5)
Interspinales
(action)
extend vertebral column
Intertransversarii
(attachment)
Transverse processes of all vertebrae
AND
Transverse processes of all vertebrae
Intertransversarii
(innervation)
Posterior and anterior rami of all spinal nerves (C1-L5)
Intertransversarii
(action)
Lateral flexion of vertebral column
Levatores costarum
(attachment)
Transverse processes of C7 and thoracic vertebrae
AND
Ribs between tubercle and angle
Levatores costarum
(innervation)
Posterior rami of C8-T11 spinal nerves
Levatores costarum
(action)
- Elevates ribs
- Lateral flexion of vertebral column
Obliquus capitis superior
(attachment)
Transverse process of atlas
AND
Occipital bone b/n sup and inf nuchal lines
Obliquus capitis superior
(innervation)
Suboccipital nerve (posterior rami of C1)
Obliquus capitis superior
(action)
Extends head
Obliquus capitis inferior
(attachment)
Spinous process of axis
AND
Transverse process of atlas
Obliquus capitis inferior
(innervation)
Suboccipital nerve (posterior rami of C1)
Obliquus capitis inferior
(action)
Rotates head
Rectus capitis posterior major
(attachment)
Spinous processes of axis
AND
Inferior nuchal line
Rectus capitis posterior major
(innervation)
Suboccipital nerve (posterior rami of C1)
Rectus capitis posterior major
(action)
Extends head
Rectus capitis posterior minor
(attachment)
Posterior tubercle of atlas
AND
Inferior nuchal line
Rectus capitis posterior minor
(innervation)
Suboccipital nerve (posterior rami of C1)
Rectus capitis posterior minor
(action)
Extends head
Spinalis
(attachment)
Spinous processes of thoracic and lumbar vertebrae
AND
Spinous processes of cervical and thoracic vertebrae