Application Draw the three types of muscle tissue and differentiate each according to their morphologic and functional characteristics. Types of Muscle Tissue Cardiac muscle Morphologic/functional characteristics Skeletal muscle Morphologic/functional characteristics of 49 Page 6 of 49 Smooth muscle Feedback 1. Briefly discuss the functions of the muscle tissues. 2. Differentiate elasticity from extensibility. 3. Differentiate the three types of muscle tissue according to their morphologic appearance and manner of contraction 4. What is a sarcomere? Page 30 of 49 Page 7 of 49 Application 1. Draw and label the structures of the thin and thick filament of myofibrils. The Thin Filament The Thick Filament Page 32 of 49 of 49 Page 34 of 49 2. Draw the sarcomere and label the structures within. The Muscle Tissue Sarcomere Page 35 of 49 Feedback 1. How are skeletal muscles cells develop? 2. What are the different connective tissue coverings of the muscle tissue? 3. Differentiate the types of skeletal muscle fibers according to metabolic profile, contractile speed, velocity and distribution. Page 36 of 49 4. What is the A band? The I band? The H zone? 5. What is the sequence of events in excitation-contraction coupling? Page 37 of 49 Application 1. Draw and label the structures of a cardiac muscle. Cardiac Muscle Page of 49 39 Page of 49 Feedback 1. What are intercalated discs? 2. How are cardiac muscle fibers different from skeletal muscle fibers? 3. Enumerate and describe the cell to cell junction adjoining cardiac muscle cells. 4. How does the cardiac muscle tissue heal in response to injury? Page of 49 40 Page of 49 Application 1. Draw and label the structures of a smooth muscle. Smooth Muscle Feedback 1. What is the appearance of smooth muscle cells? Page of 49 48 2. What are the factors that trigger contraction in smooth muscles? Discuss. 3. Are smooth muscles capable of regeneration? If yes, how do it respond to a muscle injury in various body parts? Textbook References: Mescher, A. Junqueira's Basic Histology (12th ed.). McGraw Hill, Lange. Ross, M., & Pawlina, W. Histology A Text and Atlas with Correlated Cell and Molecular Biology (6th ed.). Philadelphia, PA 19103: Lippincott Williams & Wilkins. Young, B., O'Dowd, G., & Woodford, P. (2014). Wheater's functional histology. Philadelphia, PA: Churchill Livingston/Elsevier. Online References: https://content.byui.edu/file/a236934c-3c60-4fe9 90aad343b3e3a640/1/module7/readings/function_muscle_tissue.html https://nba.uth.tmc.edu/neuroscience/m/s3/chapter01.html https://www.ck12.org/biology/muscle-contraction-energy/lesson/Muscle-Contraction-Energy-Supply-Advanced-BIO-ADV/ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3042154/ https://www.thoughtco.com/muscle-tissue-anatomy-373195 Page of 49 49 Page of 49