PPT-Major Muscles of the

Human Body Frontalis Elevates eyebrow Orbicularis oculi Flexes eye Zygomaticus Elevates lips Orbicularis oris Flexes lips Masseter Elevates mandible Muscles of the HeadFace. Muscles of girdles and appendages. Innervated by ventral ramus of spinal nerves. Key Point. What is a girdle?. What is a ramus/rami?. Appendicular Muscles - fish. Originated as extensions of hypaxials of body wall. 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. . What would life be like without . . Joints. Move a joint that you use often. . How do different joints move. Essential. . Question. 1. What role do joints play in the human body?. . Joints are the places where two bones meet and allow movement & flexibility and provides support to the human skeleton.. 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. The . sliding . filament theory . of . muscle contraction. Gross . and microscopic structure of skeletal muscle. The . ultrastructure. of a myofibril.. The . roles of . actin. , myosin, calcium ions and ATP in myofibril contraction.. 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. Objectives. Identify tender, intermediate, and tough muscles. List specific muscles in various steaks. What steaks are the most tender?. Tender Muscles. Examples:. Psoas major-. . Loin, on the back. . 2.BONES. The framework of the human body is composed of 206 bones and it forms the skeletal system. This system has 5 major functions. The skeleton gives shape and support to your body. Bones protect your internal organs. Major muscles are attached to bone and help them move. Blood cells are formed in the center of the soft tissue called marrow. Finally, major quantities of calcium and phosphorous compound, which make bones hard, are stored in the skeleton.. Ppt. # 8. 10-. 2. Muscles of Facial Expression. muscles that insert in the dermis and subcutaneous tissues. tense the skin and produce facial expressions. innervated by facial nerve (CN VII). paralysis causes face to sag. Naming Skeletal Muscles. 1 – . Location. of the muscle. 2 – . Shape. of the muscle. 3 – . Size. of the muscle. 4 – . Direction/Orientation. of the muscle. fibers/cells. 5 – . Number of Origins. 1. Sartorius. 2. . Gracilis. 3. Adductor . magnus. 4. Adductor . longus. Hip. Foot. Anterior Cadaver . Thigh Muscles. 1. Sartorius. 2. Rectus . femoris. 3. . Vastus. . lateralis. 4. . Vastus. . medialis. Identify tender, intermediate, and tough muscles. List specific muscles in various steaks. What steaks are the most tender?. Tender Muscles. Examples:. Psoas major-. . Loin, on the back. Longissimus. Anterior and Posterior Trunk Muscles. Arm and Shoulder Muscles. 207-209. Table 6.3 Superficial Anterior Muscles of the Body (See Figure 6.22) (2 of 3).. Figure 6.17a . Muscles of the anterior trunk, shoulder, and arm.. :. Objectives. :. Take a general knowledge about surface anatomy. Identify the sub-regions of the shoulder and their important surface landmarks. Study the muscles of the pectoral, lateral thoracic and .