PPT-11.2 Muscles and

Movement 1121  State the role of bones ligaments muscles tendons and nerves in human movement Bones  Provide a hard framework for stability and acts as levers 3 rd class to facilitate . More than 600 muscles in our bodies (about 650). Muscles make up approximately half of the human body’s weight. The human heart will beat . about 40 million times a year. , and . a person's heart will beat approximately 2.5 billion times by the time of their 70th birthday.. Objective. : To learn the structure and function of the Muscular System. Bell Work. : . Put the terms in the correct order from most simple to most complex: . SKELETAL MUSCLE. STRIATED MUSCLE CELL. MUSCULAR SYSTEM. 1. Muscles of the Thoracic Wall. a. . intercostals (external/internal). * L: between ribs. * A: elevate/depress rib cage (breathing). Origin:. . Inferior border of rib above. . Human Body. Frontalis. – Elevates eyebrow. Orbicularis. . oculi. – Flexes eye. Zygomaticus. – Elevates lips. Orbicularis. . oris. – Flexes lips. Masseter. – Elevates mandible. Muscles of the Head/Face. Interesting Muscle Facts. Thirty facial muscles create looks like surprise, happiness, sadness, and frowning. Eye muscles are the busiest muscles in the body. Scientists estimate they may move more than 100,000 times a day. Muscle. Origin. Insertion. Action. *Rectus . Abdominis. Pubis. Ribs, . Xyphoid. Process. Flexes. and rotates lumbar vertebrae. *External . Oblique. Ribs. Pubis, Ilium, Linea Alba. Flexes vertebral column. Coracobrachialis. Adduction of the . shoulder & flexion.. Pectoralis. Major. The first action is flexion of the . humerus. , . Secondly. , it adducts the . humerus. . . Thirdly, it rotates the . Muscles and Their Movements. Muscles move our bones which move our body. . Flexing: Creating less space at the joint. Extending: Creating more space at the joint. Muscles and Their Movements. Extending knee . Medical Therapeutics. Ms. Taylor. Did You know…... Muscles in and around your mouth facilitate the mastication or chewing process.. deglution: swallowing. mastication: chewing. origin: muscle attachment site on the bone. Over 600 in the human body. Allow the skeleton to move. To cause movement, both ends of each muscle must be attached to bone. Origin or proximal attachment – the attachment closer to the center of the body. Origin:. the immovable end of the muscle; attached to a relatively immovable bone. Insertion:. the end of the muscle attached to a movable bone. **When a muscle contracts, its insertion is pulled toward its origin.. Dr M S Ansari. Learning Objectives. Muscle groups of upper limb. Innervation of flexor, extensor compartment of arm and forearm. Predominant nerve supply in opposition of thumb. Lumbricals, innervation and action(Hand Grip). Objectives. :. Identify the palmer aponeurosis and its septa . Define the anatomical snuff box and its clinical importance. Study the digital fibrous sheath and synovial bursae. Define the extensor hood formation and its action. trigons. . on. . the. . neck. Semmelweis Egyetem ÁOK. Anatómiai Intézet. Dr. Csáki Ágnes. 2018.02.06.. Deep, . prevertebral. . muscles. of . the. . neck. M. . longus. colli. M. . longus. .