BIO 290 Lecture Notes - Lecture 1: Sphincter, Splenius Muscles, Mastoid Part Of The Temporal Bone
Document Summary
Cervical and thoracic spinous processes and nuchal ligament. Cervical transverse processes, occipital bone and mastoid process. Unilateral: laterally flex and rotate head and neck. Cervical and thoracic transverse processes and mastoid process. Spinous processes 6-7 segments superior and occipital bone. Posterior sacrum, iliac crest, sacrospinous ligament, and spinous processes of lumbar and sacral vertebrae. External intercostal - hypaxial muscle of thoracic body wall. Lower margin of superior rib to upper margin of inferior rib (obliquely downward, from vertebra toward sternum) Elevates ribs during inspiration and stabilizes thoracic wall. Internal intercostal - hypaxial muscle of thoracic body wall. Innermost intercostal - hypaxial muscle of thoracic body wall. Lower margin of superior rib to upper margin of inferior rib (obliquely downward from sternum towards vertebra) Depresses ribs during forced expiration, stabilizes thoracic wall. Transversus thoracis - hypaxial muscle of thoracic body wall. Levator ani - hypaxial muscle of pelvic body wall. Coccygeus - hypaxial muscle of pelvic body wall.
