PPT-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 fibres Fibres are bound together by connective tissue through which run blood vessels and nerves. ANSC 3404. Objectives. : Study the structures of muscle and the mechanism of muscle contraction.. . SKELETAL. . SMOOTH. . CARDIAC. METHOD OF CONTROL VOLUNTARY INVOLUNTARY . INVOLUNTARY. BANDING PATTERN STRIATED NON-STRIATED STRIATED. 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.. . Contraction of Skeletal Muscle. . (fasicle). A. Muscle . Fiber. 1. . sarcolemma. . * muscle cell membrane . . * extends into muscle fiber (forms . T-tubules. ) . 2. . sarcoplasmic reticulum. Skeletal Muscle. Human body contains over 400 skeletal muscles. 40-50% of total body weight. Functions of skeletal muscle. Force production for locomotion and breathing. Force production for postural support. 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. Types of Muscle. Skeletal – striated & voluntary. Smooth – involuntary. Cardiac - heart. The word “striated” means striped. Skeletal muscle appears striped under a microscope. . Muscles and Muscle Fiber. By BB. “Contraction in Action” Muscle Contraction Skits. Anatomy & Physiology/Tissues, Bones and Muscles. Purpose: . To create a live model or skit of approximately 3 minutes to demonstrate muscle anatomy and the physiology of muscle contraction.. . & . 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”. Figure 6.8. Contraction of a Skeletal Muscle. Muscle fiber contraction is “all or none”. Within a skeletal muscle, not all fibers may be stimulated during the same interval. Different combinations of muscle fiber contractions may give differing responses. Neurotransmitter must stimulate muscle.. This happens at the neuromuscular junction.. Axon of neuron,. ‘Synaptic bulb’. Muscle. AcH. Formed by. Muscle fiber. membrane. The space = synapse, synaptic. A warning. 1 Corinthians 10:12. Describes unfaithful descent. Jeremiah 3:6, 8, 11-14. Angers God. Isaiah 57:17. God’s pleading and forgiveness. Jeremiah 3:12-13, 22-25. Isaiah 66:1-2. The Sin of In-sliding. At the heart of muscle function. Larry M. . Frolich. , Ph.D.. March 17,2011. HOOK. Muscle is only biological cell/tissue that can cause rapid, large-scale . movement—THE evolutionary innovation that defines . 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 Muscles and Muscle Fiber. Structure.     . Muscles are composed of many fibers that are arranged in bundles called FASCICLES. Individual muscles are separated by FASCIA, which also forms tendons.