Muscles Of The Vertebral Column Flashcards
What is the origin of the iliocostalis group ?
Ribs and iliac crest
What is the insertion of the illiocostalis group ?
Transverse processes of the cervical vertebrae and ribs superior to origin
What are the joint actions of the iliocostalis group ?
Extends the spine
What is the origin of the longuismus group ?
Transverse processes of the cervical, thoracic and lumbar vertebrae
What is the insertion of the longuissmus group ?
Transverse process of superior vertebrae of origin
What are the joint actions of the longuissmuss group ?
Extends the head and rotates it to the same side
Extends the spine
What is the origin of the spinalis?
Spinous processes of cervical thoracic and lumbar vertebrae
What is the insertion of the spinalis ?
Spinious processes of superior vertebrae to origin
What are the joint actions of the spinalis ?
Extends the spine
What is the origin of the quadratus lumborum ?
Iliac crest and iliolumbar fascia
What is the insertion of the quadratus lumborum ?
Upper 4 lumbar veterbrae and lower margin of the 12th rib
What are the joint actions of the quadratus lumborum ?
Unilateral concentric contraction: lateral flexion of the spine
Unilateral isometric contraction
Bilateral eccentric contraction (prevents hyperextension)
What is the origin of the multitudes ?
Sacrum and transverse process of the vertebrae
What is the insertion of the multifidus?
Spinious processes 2-4 superior to the origin
What are the joint actions of the multifudus ?
Extension of the vertebrae column
Assists in rotation of the vertebral column
Assists in lateral flexion of the spine
