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Related Flashcards
Cards In This Set
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What are the 3 types of muscles?
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1. Smooth 2. Cardiac 3. Skeletal
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What type of muscle does this describe? Organs & Vessels; is regenerative, non-striated, & self excitable.
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Smooth
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What type of muscle does this describe?Striated, involuntary, and non-regenerative.
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Cardiac
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What type of muscle does this describe?Striated, voluntary, and non-regenerative.
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Skeletal
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What are the 5 main functions of skeletal muscle?
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1. Movement2. Heat production3. Stabilization of Joints4. Posture5. Protection
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What are the 4 functional characteristics of muscle tissue?
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1. Excitability/irritability2. Contraction3. Extension4. Elasticity
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What are the 4 types of muscle actions?
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1. Isometric - "static force"2. Isotonic - "dynamic force"3. Resting Tone - stabilizing4. Red & White Fibers - red=small/slowwhite=powerful/rapid
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Name the structures of a muscle
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1. Endomysium - w/in, b/t fibers2. Perimysium - wraps multiple myofibers, makes fascicle3. Epimysium - wraps all fascicles
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What are the structures of the Contractile Unit?
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1. Sarcomere - unit of contraction2. Filaments - myosin & actin3. Sarcoplasmic reticulum - stores calcium ions
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Aerobic
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Oxygen & glucose - can maintain for hours
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Anaerobic
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Glucose, no 02, - only maintain for a few minutes - produces lactic acid
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Creatine Phosphate
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Emergency use only - maintained only for 15 seconds or less
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What are the 4 steps of contraction?
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1. Motor Signal2. Calcium Release3. Myosin Paddles along Actin4. Recovery
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Proprioception
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Awareness of movement related to muscles and tendons
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Trigger Points
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Hyper-irritable locus within a taut band of skeletal muscle; painful upon compression, can evoke referred pain
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