Vertebral Column Muscles Flashcards
Action of Coccygeus
Supports Pelvic Viscera
Draws Coccyx Forward
Action of Diaphragm
Elevates with expiration
Depresses with inspiration
Action of External Oblique
Compresses and supports viscera
Flexes Trunk
Rotates Trunk contralaterally
Action of Iliocostalis Cervicis
Bilaterally: Extend vertebral column and head
Unilaterally: Laterally bend vertebral column
Action of Iliocostalis Lumborum
Bilaterally: extend vertebral column and head
Unilaterally: laterally bend vertebral column
Action of Iliocostalis Thoracis
Bilaterally: Extend vertebral column and head
Unilaterally: Laterally bend vertebral column
Action of Internal Oblique
Compresses and supports viscera
Flexes Trunk
Rotates Trunk Ipsilaterally
Action of Interspinales
Assist with extension and rotation of vertebrae
Proprioception
Action of Intertransversarii
Assist with lateral bending of vertebral column
Stabilizes vertebral column
Proprioception
Action of Levator Ani
Supports Pelvic viscera
Resists Intra-abdominal pressure
Action of Levatores Costarum
Elevates ribs
Assists with inspiration and lateral bending of vertebrae
Action of Longissimus Capitis
Bilaterally: Extend vertebral column and head
Unilaterally: Laterally bend vertebral column
Action of Longissimus Cervicis
Bilaterally: Extend vertebral column and head
Unilaterally: Laterally bend vertebral column
Action of Longissimus Thoracis
Bilaterally: Extend vertebral column and head
Unilaterally: Laterally bend vertebral column
Action of Multifidus
Stabilize vertebrae
Assists with local extension and contralateral rotation
Proprioception
Action of Quadratus Lumborum
Fixes 12th rib during respiration
Hikes Hip
Laterally flexes Trunk
Extends Trunk
Action of Rectus Abdominis
Flexes trunk
Compresses viscera
Action of Rotatores
Stabilize vertebrae
Assist with local extension and contralateral rotation
Proprioception
Action of Semispinalis Capitis
Extend Thorax
Rotate contralaterally
Stabilize vertebral column
Action of Semispinalis Cervicis
Extend Thorax
Rotate contralaterally
Stabilize vertebral column
Action of Semispinalis Thoracis
Extend Thorax
Rotate contralaterally
Stabilize vertebral column
Action of Spinalis Capitis
Bilaterally: Extends vertebral column and head
Unilaterally: Laterally bend vertebral column
Action of Spinalis Cervicis
Bilaterally: Extend vertebral column and head
Unilaterally: Laterally bend vertebral column
Action of Spinalis Thoracis
Bilaterally: Extend vertebral column and head
Unilaterally: Laterally bend vertebral column
Action of Transverse Abdominis
Compresses and supports viscera
Innervation of Coccygeus
Ventral Rami of S4-S5
Innervation of Diaphragm
Phrenic Nerve (C3-C5)
Innervation of External Oblique
Thoracoabdominal Nerve (T7-T12)
Innervation of Iliocostalis Cervicis
Dorsal Rami of respective spinal nerves
Innervation of Iliocostalis Lumborum
Dorsal Rami of respective spinal nerves
Innervation of Iliocostalis Thoracis
Dorsal Rami of respective spinal nerves
Innervation of Internal Oblique
Thoracoabdominal Nerve (T7-T12)
Innervation of Interspinales
Dorsal Rami of respective spinal nerves
Innervation of Intertransversarii
Dorsal Rami of respective spinal nerves
Innervation of Levator Ani
Ventral Rami of S3-S4
Perineal nerve of the pudendal nerve
Innervation of Levatores Costarum
Dorsal Rami of respective spinal nerves
Innervation of Longissimus Capitis
Dorsal Rami of respective spinal nerves
Innervation of Longissimus Cervicis
Dorsal Rami of respective spinal nerves
Innervation of Longissimus Thoracis
Dorsal Rami of respective spinal nerves
Innervation of Multifidus
Dorsal Rami of respective spinal nerves