Term
Three types of muscle tissue |
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Definition
Skeletal, cardiac, and smooth |
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Definition
plasma membrane of muscle cells |
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Plasma membrane of muscle cells |
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Obvious stripes on muscle cells |
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Muscle tissue in the heart |
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Cardiac muscle cells are Striated or Non striated? |
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Definition
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Term
Found in the walls of hollow visceral organs |
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Definition
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Term
Smooth muscle has striations or not? |
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Definition
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Term
Type of smooth muscle; its cells contract as a unit and rhythmically, are electrically coupled by gap junctions, and often exhibit spontaneous action potentials |
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Definition
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Term
The ability to receive and respond to a stimulus |
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Definition
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Term
the ability to shorten forcibly when adequately stimulated |
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Definition
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Term
Four functions of Muscles |
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Definition
1.Produce movement 2. Maintains posture 3. Stabilizes joints 4. Generates heat |
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Term
Skeletal muscle accounts for at least __% of body mass |
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Definition
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Term
Never endings contron the activity of which muscle fiber? |
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Definition
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Term
An overcoat of dense irregular connective tissue that surrounds the whole muscle |
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Definition
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Term
Within each skeletal muscle, the muscle fibers are grouped into ______ that resemble bundles of sticks. |
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Term
Surronding each fascicle is a layer of fibrous connective tissue called |
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Definition
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Term
A whispy sheath of connective tissue that surrounds each individual muscle fiber. |
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Definition
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Term
Endomysium conistis of fine ____ _____ _____ |
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Definition
Areolar Connective Tissue |
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Term
Fibrous or membraneous sheet connecting a muscle and the part it moves |
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Definition
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Term
A discrete bundle of muscle cells, segregated from the rest of the muscle by a connective tissue sheath. |
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Definition
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Term
An elongated multinucleate cell; it has a banded (striated) appearance. |
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Definition
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Term
Rodlike contractile elements that occupy most of the muscle cell volume. Composed of sacromeres arranged end to end, they appear banded, and hands of adjacent myofibrils are aligned. |
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Term
The contractile unit, composed of myofilaments made up of contractile protiens. |
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Definition
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Term
Filaments contain bundled myosin molecules. |
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Definition
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Contain actin molecules (plus other protiens). |
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Definition
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Term
The sliding of the tin filaments past the thick filaments produces muscle |
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Definition
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Term
Elastic finaments maintain the organazation of the _ band and provide for elastice recoil when muscle contraction ends. |
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Definition
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Term
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Definition
Plasma Membrane of the Muscle |
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Term
Cytoplasm of a muscle cell |
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Definition
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Term
A red pigment that stores oxygen |
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Definition
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Each muscle fiber contains many rodlike __________ that run parallel to its length. |
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Definition
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A repeating series of dark and light bands along the length of each myofbril |
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Dark zone inside the A band |
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Definition
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Midle interruption of the I bands |
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Definition
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Term
The smallest contractile unit of a muscle fiber |
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Definition
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