IMED1001 Lecture Notes - Lecture 19: Skeletal Muscle, Neuromuscular Junction, Myocyte
12 Jul 2018
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Learning outcomes: understand the key concepts of muscle action. Identify superficial muscles of the human body: describe the actions of muscles, understand the naming conventions of skeletal muscle. Prefixes: epi= upon , on, above, peri= around, surrounding, endo= within, myo= muscle. Muscle tissue includes all contractile tissues (skeletal, cardiac, smooth muscles) 36% of total body weight for women. 42% of total body weight for men. Innervation (voluntary or involuntary) classified by: skeletal- voluntary, smooth- involuntary/ autonomic nervous system, e. g. peristalsis bronchioles, e. g. kidneys- filtration. Propel substances around (and in/out of) the body. Composition of skeletal muscle: skeletal muscle fibres, blood vessels, nerves, connective tissue, connective tissue keeps it safe from infection, nerve into neuromuscular junction to tell it what to do. Skeletal muscle: each muscle is served by one artery, one nerve, and one or more veins, connective tissue sheaths of skeletal muscle: Epimysium: dense regular connective tissue surrounding entire muscle.
