trunk muscles + joints
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10 Terms
Erector spinae group
Extension of the vertebral column
Rectus abdominis
Flexes the vertebral column
External oblique
Rotates, flexes, and laterally flexes the vertebral column; depresses costae
Internal oblique
Rotates, flexes, and laterally flexes the vertebral column; depresses costae
Transversus abdominis
Compresses the abdominopelvic cavity
Sternocleidomastoid
Rotates head at the atlantoaxial joint; flexes head at the atlanto-occipital joint and neck intervertebral joints; laterally flexes the head at the neck intervertebral joints
Splenius capitis
Rotates head at the atlantoaxial joint; extends head at the atlanto-occipital joint and neck intervertebral joints; laterally flexes the head at the neck intervertebral joints
External intercostals
Elevates the costae (inhalation)
Internal intercostals
Depresses the costae (exhalation)
Atlanto-occipital joint
Occipital bone, atlas (c1)
Note 
Flashcards (55)