MEDI111 Lecture Notes - Sternocleidomastoid Muscle, Scalene Muscles, Mastoid Part Of The Temporal Bone

• School: UOW
• Department: Medical and Health Sciences
• Course: MEDI111
• Professor: Dr Katrina Green

Document Summary

Connects to the sternum, clavicle, and mastoid process. Allows flexes and tilting of head to the side. Allows elevation and rotation of scapula (shoulder shrug) Group of muscles allowing back extension and lateral flexion. Erector spinae group of muscle for back extension and lateral bending. Semispinalis and quadratus lumborum, allows extension and rotation. Muscles of the lower back and hip. Iliac crest and vertebrae to the lesser trochanter of the femur. External coastals (superficial muscles for inspiration) allowing ribs to be elevated. With their fasciae (connective tissue) and aponeuroses (white fibrous tissue), form the lateral and anterior abdominal wall. Urination, defecation, childbirth, vomiting, coughing and screaming. Fascicles run at angles to provide strength. Nerves are supplied (innervated) by the intercostal nerves. Act in combination to fix it to the shoulder girdle, and the scapula, and increases the range of arm movements. Elevation, depression, rotation, lateral and medial movements, protraction, and retraction.