Skeletal Muscle Cell By Hannah Nappi Striated muscle

Skeletal Muscle Cell By: Hannah Nappi

• Striated muscle that controls voluntary activities and contains multiple nuclei. • Carries out voluntary movements and are what ache after strenuous exercise Skeletal Muscle Cells

• Found in mesoderm. • Skeletal muscles are the body's most abundant tissue, comprising about 23% of a woman's body weight and about 40% of a man's body weight. About the Muscle Cell

Structural Elements

• Actin filaments are also called the thin filaments. • Myosin filaments are also called the thick filaments • The two kinds of filaments lie parallel to each other. When muscle contraction is triggered, the actin and myosin filaments slide past each other in a telescoping fashion. Actin and Myosin

• Muscle cells are full of organelles called mitochondria. • Other organelles found in muscle cells are ribosomes and cytoskeleton. • There is also both rough and smooth ER. • Organelles of a skeletal muscle cell are defined as the sarcoplasmic reticulum. • These cells have lysosomes which consume particles that are engulfed by these cells during the process of phagocytosis Organelles

• Muscular dystrophy (MD) is a group of muscle diseases that weaken the musculoskeletal system and hamper locomotion. • Muscular dystrophies are characterized by progressive skeletal muscle weakness, defects in muscle proteins, and the death of muscle cells and tissue. • There are 9 different types that you can have. • Primary muscle diseases or myopathies have to be distinguished from secondary neuropathic changes caused by disorders that disrupt muscle innervation. • Both are associated with altered muscle function and morphology, but each has distinctive features. • Myopathic conditions are often associated with segmental necrosis and regeneration of individual muscle fibers. Disorders/ Diseases

• What are the protein(s) the are found in the cell? a. b. c. d. e. • Skeletal Muscle Cells are also called_____. Calcium Myosin Actin Both b and c All of the above Multiple Choice Questions a. Muscle Tendons b. Muscle Fibers c. Muscle filaments d. Muscle titon 1. D 2. B

• Skeletal Muscle is responsible for mostly a. Voluntary b. Involuntary c. None of the above d. Both a and b • True or False Multiple Choice Questions • Skeletal Muscle Cells are large and have many nuclei. 3. A 4. True

• The skeletal muscle cells are the like the elves they never stop working even if everyone else is sleeping. Without the elves there would be no Christmas presents, just like without the skeletal muscle cells need to be working all the time for your body to be functioning. Anaolgy

Hillis, David. , Craig H. Heller, David Sadava, and Mary V. Price. Principles of Life. Sunderland, MA: Sinauer Associates, 2012. Print. "Muscoskeletal System Skeletal Muscle Embryonic Index: Sk. M. " Skeletal Muscle. N. p. , n. d. Web. 02 Dec. 2013. <http: //discovery. lifemapsc. com/invivo-development/skeletal-muscle>. Bibliography Skeletal Striated Muscle. " Wikipedia. N. p. , 6 Nov. 2013. Web. 2 Dec. 2013. <en. wikipedia. org/wiki/Skeletal_ striated_muscle.