MSA2 Final Written
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Two actions of external obliques
- Lateral flexion
- contralateral rotation of the lumbar spine
Two actions of SCM
- Bilateral neck flexion
- Bilaterally assists to elevate the ribs during inhalation
- Unilateral ipsilateral lateral head flexion
- Unilateral contralateral cervical rotation
What is the deepest abdominal muscle?
What is the main action of the diaphragm?
Draws down the central tendon during inspiration
What three muscles contralaterally rotate the neck?
Scalenes, SCM, Trapezius
Name two neck flexors.
SCM, Anterior Scalenes
Name three trunk flexors.
Rectus abdominis, external and internal obliques
Name the two muscles of mastication.
Medial pterygoin and masseter
Name the muscles superficial to QL.
Transverse abdominis, lats, spinalis, longissimus, iliocostalis, and thoracolumbar aponeurosis (not a muscle)
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