PPT-Contraction of Skeletal Muscle

112 Learning Objectives Explain the sliding filament mechanism State what evidence supports the sliding filament mechanism Explain where the energy comes from for muscle contraction Success Criteria. Learning Objective:. To . be able to explain the sliding filament theory using appropriate terminology.. Structure of a Muscle. Skeletal muscle is made up of bundles of muscle . fibres. .. Fibres. are bound together by connective tissue through which run blood vessels and nerves.. Review Principles of Muscle Mechanics. Same principles apply to contraction of a single fiber and a whole muscle. Contraction produces tension, the force exerted on the load or object to be moved. Review Principles of Muscle Mechanics. Muscles. Summation of Contractions. Figure 12-17a. Summation of Contractions. Figure 12-17b. Summation of Contractions. Figure 12-17c. Summation of Contractions. Figure 12-17d. Motor Units. Figure 12-18. Foldable. You will make a Foldable to illustrate the steps in skeletal muscle contraction (use figure 10-1 on pg. 299). You may use any type of foldable (but only 1 colored sheet of paper). You may combine steps so you have less than the 10 steps on pg. 299. . & . Reflexes, . Proprioception. and Movement. PSK 4U Unit 4, Day 4. Excitation. -. Contraction . Coupling. Muscles work by converting electrical and chemical energy into mechanical energy!. The process of muscle contraction as a whole is often referred to as “excitation-contraction coupling”. Types of Muscle Tissue . (cont.). Muscle Group. Major Location. Major . Function. Mode of Control. Skeletal Muscle. Attached to bones and skin of the face. Produces body movements and facial expressions. As it contracts it . -causes movement. -maintains posture. -stabilizes joints. -and generates heat. . Muscle Types. Skeletal muscle (voluntary). muscle attached to the skeleton. cells are long, striated, and multinucleate. Histology Lecture . Series. Larry . Johnson, Professor. Veterinary Integrative Biosciences. Texas A&M University. College Station, . TX 77843. Muscle. – Introduction. Contractivity. is one of the . Sabrina Barner, Abbe Carlin, Amber Weigle. Neuromuscular Junctions. Communication link between nervous system and skeletal muscle fiber. Specialized intercellular connection. Each skeletal muscle fiber is controlled by a nerve cell. perfomance. enhancing drugs?. 2. Would . you consider supplements such as . Creatine. to be a performance enhancing drug? Why or why not?. The Muscular System. A&P Fall 2016. I. Overview of Muscle Tissues. Muscle Contraction and the Sliding Filament Theory Learning Objective: To be able to explain the sliding filament theory using key terminology. Structure of a Muscle Skeletal muscle is made up of bundles of muscle matt.velkey@duke.edu. 452A Davison, Duke South. Muscle Tissue. I. Striated Muscle - regularly arranged contractile units. A. Skeletal Muscle - long, cylindrical multinucleated cells with peripherally placed nuclei. Contraction is typically quick and vigorous and under voluntary control. Used for locomotion, mastication, and phonation.. Prof. Dr. . Anna L. Kiss . Department. of . Anatomy. , . Histology. and . Embryology. Semmelweis University. Budapest . 2021. Muscle. . tissue. Function. : . contraction. Origin. : . mesoderm. Structure. October . 24 - 25 2017. Muscle . Structure. Muscle. Fascicle (bundle of fibers). Muscle . Fiber (single cell). Myofibril (organelle). Sarcomere (unit of contraction). Microscopic Anatomy of Skeletal Muscle.