Anatomy and Physiology Chapter 10 Part A Lecture: The Muscular System

Anatomy and Physiology Chapter 10 Part A Lecture: The Muscular System Chapter 9 Part A Lecture can be found here:    • Anatomy & Physiology Chapter 9 Part A Lect...   Chapter 9 Part B Lecture can be found here:    • Anatomy & Physiology Chapter 9 Part B Lect...   Please leave questions in the comments below or email directly at [email protected] Facebook:   / majoonc   Text: Elaine Marieb & Katja Hoehn Human Anatomy and Physiology 10th edition. Pearson Education Inc 2016. The Human Body: An Orientation. Topcis Covered: Muscle Actions and Interactions Criteria for naming muscle how muscles interact to bring about movement principles of leverage Agonist prime movers Antagonist Synergist Fixator Naming Skeletal Muscles Muscle Shape Muscle Size direction of muscle fibers number of origins location of attachments muscle action fascicle arrangements circular fascicle arrangment convergent fascicle arrangment parallel fascicle arrangment Pennate fascicle arrangment Fusiform fascicle arrangment unipennate Bipennate Multipennate Lever systems lever fulcrum effort load mechanical advantage (power lever) mechanical disadvantage (speed lever) Basic Principal of levers Classes of Lever Systems First-class lever Second class lever Third Class Lever Tips for learning muscles Muscles of the Head Muscles of facial expression facial nerve cranial nerve VII Muscles of the scalp Muscles of the face epicranius (occipitofrontalis) corrugator supercilli orbicularis oculi zygomaticus Risorius levator labii superioris depressor labii inferioris depressor anguli oris Orbicularis Oris Mentalis Buccinator Platysma