musculoskeletal 08 final version

musculoskeletal 08 final version - 1 Chris Brey Ph.D...

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Unformatted text preview: 1 Chris Brey, Ph.D. Assistant Professor Division of Life Sciences Department of Entomology 212 Blake Hall 932-9657 [email protected] Office hrs 1- 3 Tues. Dr. Brey Musculoskeletal System Digestion Nutrition Circulation Blood & Immunity Immunity Respiration Excretion Prof. II Gaugler Evolution & Ecology (8 lectures ) GB 102 Lecture Schedule Musculoskeletal System ● Skeletons ● Skeletal muscles- Anatomy- Contractions- Neuromuscular junctions- Whole muscle action 2 Skeletal System ● Supports and protects the body ● Base for muscle action Types of Skeletons 1. Hydrostatic Worm ● Fluid filled cavity ● Most efficient earthworm Types of Skeletons (cont.) 2. Exoskeleton ● Hard outside covering (chitin) ● Must molt to grow 3 Types of Skeletons (cont.) 3. Endoskeleton ● Echinoderms ● Chordates Skeletal Muscle Figure 38 Figure 38-11 11 Page 740 Page 740 Biceps relaxes Triceps contracts Triceps relaxes Biceps contracts Extension Flexion ● Act Antagonistically 4 5 Skeletal Muscle Anatomy Figure 38 Figure 38-7a,b 7a,b Page 736 Page 736 Biceps muscle Muscle fiber Bicep muscle Fascicle (Bundle of muscle fibers) Muscle fiber = a muscle cell 6...
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musculoskeletal 08 final version - 1 Chris Brey Ph.D...

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