Review muscle fibers
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| Fasicle | Bundle of Muscle Fibers
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| Tendon | Connects Bone to Muscle
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| Aponeurosis | Sheet like tendon
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| Sarcomere | Unit bordered by z lines that contain Actin & myosin
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| Sarcolemma | Cell membrane of a muscle cell
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| Actin | Thin fibers involved in muscle contraction
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| Myosin | Thick fibers involved in muscle contraction
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| Motor Neuron | Nerve that innervates skeletal muscle
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| Motor Unit | Muscle and nerve together
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| Calcium | Attaches to Tropomin which slides Tropomyosin off of Actin
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| Sarcoplasmic Reticulum | Stores calcium in skeletal muscle cells
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| T-Tubule | Carries action potential deep inside muscle cell
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| Concentric | Isotonic Movement
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| Eccentric | Isotonic movement
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| Isometric | No movement
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| Recruitment | Increased # of Motor Units
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| Myoglobin | makes red muscle red
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| Gap Junctions | Single unit smooth muscle junctions
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| Intercollated Discs | found in Cardiac Muscle
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| Striated & Several Nucleii | Skeletal Muscle
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| ATP attached to... | Mysoin heads
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| Neuromuscular Junction | Axon & Muscle
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| Refractory Period | Muscle loses its excitability
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| Latent Period | Stimulus applied & muscle actual contraction
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| Action potential releases... | Calcium from Sarcoplasmic Reticulum
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| Epimysium | outermost layer surrounding muscle
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| Perimysium | Surrounds each fasicle
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| Endomysium | Surrounds each muscle fiber
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| Myofibril | Proteins found in muscle fibers
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| z lines | Borders between saccomeres
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| Smooth Muscle | Autonomic, Non-striated, single nucleus, Calcium binds to Calmodulin
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| Multi Unit smooth muscle | Individual cells that must each be stimulated
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| Single unit smooth Muscle | gap junctions between cells, one action potential contracts all cells
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| Cardiac Muscle | Striated, sarcomeres, involuntary, Autonomic
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| Intercollated Discs | Thick fingerlike projections where gap junctions are lovated at the ends of the sarcolemma
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