BIO 3342 Lecture Notes - Lecture 44: Epicranial Aponeurosis, Orbicularis Oculi Muscle, Occipitalis Muscle
Document Summary
Be able to define what a muscle action is. Know the functional groups that muscles can be classified under and examples of muscles for each category. Know the major muscles of the body and their actions and be able to identify in models and pictures. Definitions: action : the movement that a muscle produces. Muscles of the head & face involved in facial expression. Muscle epicranius (frontal belly) epicranial aponeurosis epicranius occitpial and temporal (occipital belly) bones orbicularis oculi frontal and maxillary bones and ligaments around orbits. Action pectoralis major clavicle, sternum, cartilage of ribs 1-6, fibers converse to insert by a short tendon into the prime mover of arm flexion, adducts, medially rotates the. 5/6 ribs, lumbar fascia linea alba, pubic crest, costal cartilages of the lower 3 ribs trunk rotation and lateral flexion linea alba and pubic crest compresses the abdominal contents pectoralis minor. 3-5 near the costal anterior surface of ribs cartilages coracoid process of the scapula.
