Thorax Flashcards
Splenius cervicis origin
Spinous processes of T3 ot T6
Splenius cervicis inseriton
Transverse processes of C1 to C3
Splenius cervicis actions
Unilaterally rotate the head and neck to the same side, laterally flex the head and neck to the same side. Bilaterally extend the head and neck.
Splenius cervicis innervation
Cervical nerves
Semispinalis capitis origin
Transverse processes of C4 to T5
Spemispinalis capitis insertion
Between the superior and inferios nuchal lines of the occiput
Semispinalis capitis actions
Extend the vertebral column and head.
Semispinalis capitis innervation
Cervical nerves
Rotatores origin
Transverse processes of the lumbar through cervical vertebrae.
Rotatores insertion
Spinous processes of lumbar vertebrae through the second cervical vertebrae, each spanning 1-2 vertebrae.
Rotatores actions
Unilaterally rotate the vertebral column to the opposite side. Bilaterally extend the vertebral column.
Rotatores innervation
Spinal nerves
Rotatores palpation key
Push the erectors laterally out of the way.
Multifidi origin
Sacrum and transverse processes of the lumbar through cervical vertebrae.
Multifidi insertion
Spinous processes of the lumbar vertebrae through the second cervical vertebrae, each spanning 2-4 vertebrae.
Multifidi actions
Unilaterally rotate the vertebral column to the opposite side. Bilaterally extend the vertebral column.
Multifidi innervation
Spinal nerves
Longissimus thoracis origin
Common tendon
Insertion of longissimus thoracis
Lower nine ribs and transverse processes of the thoracic vertebrae.
Origin of longissimus cervicis and capitis
Transverse processes of upper five thoracic vertebrae.
Insertion of longissimus cervicis
Transverse processes of cervical vertebrae
Insertion of longissimus capitis
Mastoid process of the temporal bone.
Longissimus actions
Laterally flex the vertebral column to the same side. Bilaterally extend the vertebral column.
Longissimus innervation
Spinal nerves
Spinalis thoracis origin
Spinous processes of the upper lumbar and lower thoracic vertebrae.
Spinalis cervicis origin
Ligamentum nuchae and spinous process of C7.
Spinalis thoracis insertion
Spinous processes of the upper thoracic vertebrae
Spinalis cervicis insertion
Spinous processes of the cervicals except for C1.
Spinalis actions
Unilaterally laterally flex the vertebral column to the same side. Bilaterally extend the vertebral column.
Spinalis innervation
Spinal nerves
Erector spinae group includes which muscles
Spinalis, longissimus and iliocostals
Quadratus lumborum origin
Posterior iliac crest
Quadratus lumborum insertion
Last rib and the transverse processes of the first through fourth lumbar vertebrae.
Splenius capitis origin
Inferior half of the ligamentum nuchae and the spinous processes of C7 to T4
Splenius capitis insertion
Mastoid process and the lateral portion of the superior nuchal line
Splenius capitis actions
Extend the neck, unilaterally rotate and sidebend the neck to the same side.
Serratus posterior superior actions
Elevate the ribs during inhalation
Serratus posterior superior origin
Spinous processes of C7 to T3
Serratus posterior superior insertion
Posterior surface of the second through fifth ribs
Transverse abdominis actions
Compress the abdominal contents
Transverse abdominis origin
Lateral inguinal ligament, iliac crest, thoracolumbar fascia and the internal surfaces of the lower 6 ribs.
Transverse abdominis insertion
Rectus sheath to the linea alba
Internal oblique actions
Laterally flex and rotate the vertebral column to the same side. Bilaterally flex the vertebral column and compress the abdominal contents.
Internal oblique origin
Lateral inguinal ligament, iliac crest, thoracolumbar fascia
Internal oblique insertion
Internal surface of the lower three ribs, rectus sheath to linea alba.
External oblique actions
Laterally flex the vertebral column to the same side and rotate to the opposite side. BIlaterally flex the vertebral column and compress the abdominal contents.
External oblique origin
External surfaces of the fifth through twelfth ribs
External oblique insertion
Anterior part of the iliac crest, rectus sheath to the linea alba
Diaphragm origin
Inner surface of the lower 6 ribs, upper 2 or 3 lumbar vertebrae and the inner part of the xiphoid process
Rectus abdominis origin
Pubic crest and pubic symphysis
Rectus abdominis insertion
Cartilage of ribs 5-7 and the xipohoid process
Serratus posterior inferior actions
Depress the ribs during inhalation.
Serratus posterior inferior origin
Spinous processes of T12 to L3
Serratus posterior inferior insertion
Posterior surface of ribs 9-12
Iliocostalis actions
Unilaterally sidebend the vertebral column and bilaterally extend the vertebral column.
