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Anatomy

Anatomy: Deep Back Muscles and Suboccipital Region

QuestionAnswer
Rectus capitis posterior major extension of the head and rotation ot the same side
Rectus capitis posterior major Spinous process of C2 to Occipital Bone
Rectus capitis posterior minor Spinous process of C1 to Occipital bone
Rectus capitis posterior minor Extension of head
Obliquus capitis superior Transverse process of C1 to Occipital Bone
Obliquus capitis superior Extension of head ahnd lateral flexion to same side
Obliquus capitis inferior Spinous process of C2 to Transverse process of C1
Obliquus capitis inferior Rotation of face to same side
Interspinalis Spinous procees above to spinous process below
Interspinalis stabilization
Intertransversarii transverse process above to transverse process below
Intertransversarii stabilization
Levatores costarum transverse process tips of C7 to T11 --> pass inferolaterally and insert on rib
Levatores costarum elevates rib
Multifidus aponeurosis of erector spinae muscles, sacrum and transverse processes of lumbar, thoracic and cervical vertebrae --> spinous process of L,T, and lowC vert.
Multifidus extend the vertebral column and rotates the vcertebral column contralaterally
Rotatores transverse processesof C2 vertebra to the sacrum --> near lamina immed. above vert. or origin
Rotatores extend the vertebral column and rotates the vcertebral column contralaterally
Semispinalis thoracis Transverse processes of T7-T12 vertebrae --> spinous processes of C6-T6 vertebrae
Semispinalis thoracis EXTEND the C and T regions of vert column and ROTATES the column contralaterally
Semispinalis cervicis Transsverse process of T1-T6 vertebrae --> Spinous processes of C2-C5
Semispinalis cervicis EXTEND the C and T regions of vert column and ROTATES the column contralaterally
Semispinalis capitis Transverse processes of C7-T6 vert --> between the sup and inf nuchal lines on occipital bone
Semispinalis capitis EXTENDs head and TURNS face towards the opposite side
Spinalis thoracis Spinous processes of T1-L2 vertebrae --> Spinous processes of T1-T8 vertebrae
Spinalis thoracis Bilateral-EXTEND vert column; Unilateral- lateral FLEXION of vert column
Spinalis cervicis Lower nuchal ligamnet and C7 spinous process --> spinous process of C2
Spinalis cervicis Bilateral-EXTEND vert column; Unilateral- lateral FLEXION of vert column
Longissimus thoracis Blends wth iliocostalis; transverse processes of lumbar vertebrae --> transverse processes of T vert and inf borders of ribs (Lower 10)
Longissimus thoracis Bilateral-EXTEND the vert column; Unilateral- lateral FLEXION of vert column
Longissimus cervicis Transverse processes of T1-T5 vert --> transverse processes of C2-C6 vert
Longissimus cervicis Bilateral-EXTEND the vert column; Unilateral- lateral FLEXION of vert column
Longissimus capitis Transverse processes of C5-T5 vert --> mastoid process of temporal bone
Longissimus capitis Bilateral-EXTEND the vert column; Unilateral- lateral FLEXION of vert column
Iliocostalis lumborum Iliac crest and sacrospinal aponeurosis --> thoacolumbar fascia and ribs 7-12
Iliocostalis lumborum Bilateral-EXTEND vert column; Unilateral--lateral FLEXION of vert column
Iliocostalis thoracis Ribs 6-12 --> ribs 1-6 and transverse process of C7 vertebra
Iliocostalis thoracis Bilateral-EXTEND vert column; Unilateral--lateral FLEXION of vert column
Iliocostalis cervicis Ribs 3-6 --> transverse processes of C4-C6 vertebrae
Iliocostalis cervicis Bilateral-EXTEND vert column; Unilateral--lateral FLEXION of vert column
Splenius capitis Nuchal ligament, spinous processes of C7-T4 vertebrae --> Mastoid process and occipital bone
Splenius capitis Acting alone: Laterally BENDS and ROTATES the head (same side); Acting together: EXTEND head and neck
Splenius cervicis Spinous processes of T3-T6 --> Transverse processes of C1-C3
Splenius cervicis Acting alone: Laterally BENDS and ROTATES the head (same side); Acting together: EXTEND head and neck