Chapter10MuscleTissueMarieb

Chapter10MuscleTissueMarieb - Ch 10: Skeletal Muscle Tissue...

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1) Describe the distinguishing characteristics of the different muscle tissues 2) Discuss the organization of skeletal muscle 3) Explain the micro-anatomy of a skeletal muscle fiber 4) Describe the fascicle arrangement in different types of muscle 5) Review general muscle terminology Ch 10: Skeletal Muscle Tissue (Myology) main objectives: Developed by John Gallagher, MS, DVM
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Types of Muscle Tissue One of the 4 primary tissue types Skeletal = Striated = Voluntary 40 % of weight Cardiac (involuntary) Smooth (involuntary, nonstriated Made up of many tissue types. > 700 skeletal muscles Word roots: sarco myo Musculus = little mouse
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Function of Skeletal Muscles 1. Skeletal movement 2. Posture and body position 3. Support of soft tissues 4. Joint Stabilization 5. 6. Maintenance of body temperature 7. Protection 8. Facial expression
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Gross to Microscopic Anatomy Each skeletal muscle cell (fiber) is wrapped by 3 layers of connective tissue.
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Epi-, Peri-, and Endomysium Are interwoven - Continuous with tendon, and eventually the periosteum Distinguish between: Tendon Aponeurosis Ligament Function: Protection Blood supply Innervation Epimysium = On top of the muscle Perimysium = Around a bundle of myofibers Endomysium = Surrounds each myofiber
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Nerve and Blood Supply Skeletal muscles are rich in nerves and blood vessels. Chemical communication at
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This note was uploaded on 12/16/2011 for the course BIOLOGY 101 taught by Professor Mr.wallace during the Fall '11 term at Montgomery College.

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Chapter10MuscleTissueMarieb - Ch 10: Skeletal Muscle Tissue...

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