Muscles of the Vertebral Column Flashcards
Muscle groups of the Vertebral Column
iliocostalis, longissimus, and spinalis groups
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iliocostalis
longissimus
spinalis
iliocostalis group
iliocostalis cervicis, thoracis, and lumborum
most lateral muscle group
iliocostalis cervcis
extends or laterally flexes neck and elevates ribs
iliocostalis thoracis
stabalizes thoracic vertebrae in extension
iliocostalis lumborum
extends vertebral colum, depresses ribs
longissimus group
longissimus capitis, cervicis, and thoracis
intermediate tripartite muscle group
longissimus capitis
the two sides act together to extend the head and turn the face to the same side
longissimus cervicis
the two sides act together to extend theneck (vertebral column); either alone rotates and laterally flexes neck to the side
longisimus thoracis
extension of vertebral column, alone each produces lateral flexion to that side
spinalis group
spinalis cervicis,spinalis thoracis, and splenius; most medial muscle group
spinalis cervicis
extends neck
spinalis thoracis
extends vertebral column
splenius
2 sides act together to extend neck, either alone laterally flexes and rotates the neck to that side