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Muscles OF Vertebral Column
Anatomy Of Lower Limb & Trunk (HBS2ALT)
La Trobe University
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WHOLE VERTEBRAL COLUMN: ERECTOR SPINAE MUSCLE GROUP: MUSCLE Spinalis o Cervicus o Thoracis EMRYOLOGICAL ORIGIN AND INNERVATION Cervicus: ORIGIN SP of cervical region INSERTION SP of cervical region Epimere Cervical dorsal rami spinal nerves POSITION AND ORIENTATION Position Bilateral: Longissimus o Capitis o Cervicus o Thoracis Iliocostalis o Cervicus o Thoracis o Lumborum TP of upper thoracic region Onto the posterior occipital bone (posterior aspect of mastoid process) TP of cervical vertebrae Posterior sacrum TP of thoracic vertebrae Angles of rib TP of cervical vertebra Epimere Cervical dorsal rami spinal nerves Thoracis: Extension of cervical region Vertical Position: Bilateral: Posterior Extension of thoracic region Orientation: Unilateral: Vertical Lateral flexion Position: Bilateral: Posterior and lateral Extension Orientation: Unilateral: Vertical Lateral flexion of region Epimere Thoracic dorsal rami spinal nerves Cervicus: SP of thoracic region Epimere Cervical dorsal rami spinal nerves Thoracis: TP of upper thoracic region Epimere Upper cervical dorsal rami spinal nerves Cervicus: SP of thoracic region Epimere Thoracic dorsal rami spinal nerves Capitis: Posterior Orientation: Thoracis: FUNCTION Epimere Thoracic dorsal rami spinal Angles of 12th rib Posterior aspect of upper ribs Position: Bilateral: Posterior and lateral Extension Orientation: Unilateral: Oblique Lateral flexion Ipsilateral rotation Thoracis Multifidus lumborum Epimere Thoracic dorsal rami Epimere Lumbar dorsal rami Transverse process of T6T12 Sacrum Spinous process of Spinous process of lumbar vertebrae Bilateral: Posterior, lateral Epimere Thoracic dorsal rami Transverse processes of thoracic region Spinous process of thoracic region Extension of thoracic spine Orientation: Unilateral: Contralateral rotation Position: Bilateral: Rotatores thoracis Contralateral rotation Position: Posterior, medial Orientation: Oblique Extension of lumbar spine Unilateral: Contralateral rotation Lateral flexion Position: Bilateral: Posterior, lateral Orientation: Oblique CERVICAL REGION MUSCLE GROUP: Stability Extension Unilateral: Contralateral rotation Longus capitis Hypomere Cervical ventral rami Transverse process of upper cervical Interior surface of occipital bone vertical Position: Bilateral: Anterior Flexion at joint Orientation: Rectus capitis anterior Rectus capitis lateralis Hypomere Cervical ventral rami Hypomere C1 ventral rami spinal nerves Transverse process of atlas Transverse process of atlas Inferior occipital bone Inferior lateral surface of occipital bone vertical Position: Bilateral: Anterior Flexion Orientation: Unilateral: Oblique Lateral flexion Position: Bilateral: Anterior and lateral Orientation: Vertical Stabilises the head Unilateral: Lateral flexion MUSCLE GROUP: MUSCLE Obliqus capitis (superior oblique) EMRYOLOGICAL ORIGIN AND INNERVATION Epimere Dorsal rami of C1 ORIGIN Transverse process of C1 INSERTION Lateral aspect of occipital bone POSITION AND ORIENTATION Position: posterior Orientation: oblique FUNCTION Bilateral: Extension of head and neck Unilateral: Obliqus capitis (inferior oblique) Epimere Dorsal rami of C1 Spinous process of axis (C2) Transverse process of atlas (C1) Position: Posterior Lateral flexion Bilateral: Stabilisation of the head and MUSCLE EMRYOLOGICAL ORIGIN AND INNERVATION ORIGIN INSERTION POSITION AND ORIENTATION FUNCTION Psoas Hypomere Lumbar ventral rami (L1, L2, L3 Spinal nerves) Transverse process of lumbar vertebrae Lesser trochanter of the femur Position: Orientation: Bilateral: Anterior and lateral Oblique Stabilisation of lumbar spine Unilateral: Lateral flexion of lumbar spine Joint crossed: Quadratus lumborum Hypomere Lower thoracic ventral rami spinal nerves) ligament Posterior of iliac crest Inferior border of 12th rib Transverse process of lumbar vertebra Crosses lumbar IV joints Position: Bilateral: lateral Orientation: Oblique Joint crossed: Rectus abdominis Hypomere Lower thoracic ventral rami Pubic tubercle Costal cartilages (5th and 7th rib) Xiphisternum Crosses lumbar IV joints Position: Anterior Orientation: Vertical (inferior to superior) Stabiliser of the vertebral column, Elevation of the pelvis Unilateral: Lateral flexion of the lumbar spine Bilateral: Flexion of the thoracic and lumbar vertebral column Unilateral flexion: External oblique (Hands in Hypomere Lower thoracic ventral rami External surface of the lower ribs (5th 12th) Iliac crest Inguinal ligament Linea alba Pubic tubercle Position: Bilateral: Hypomere Iliac crest Linea alba Anterior and lateral Orientation: Internal Lateral flexion (weak) Obliquely from superior to inferior Position: Flexion of the lumbar vertebral column Forced expiration Unilateral: Lateral flexion, Contralateral rotation Bilateral:
Muscles OF Vertebral Column
Course: Anatomy Of Lower Limb & Trunk (HBS2ALT)
University: La Trobe University
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