Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| ability of a muscle to shorten with force | contractibility
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| capacity of muscle to respond to a stimuli | excitability
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| muscle can be stretchedd to its normal resting length and beyond to a limited degree | extensibility
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| ability of muscle to recoil to original resting length after stretched | elasticity
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| cell membrane of a muscle cell | sarcolemma
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| cytoplasm within the muscle cell | sarcoplasm
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| membranous network of channels and tubules within the muscle fiber, corresponding to the endoplasmic reticulum of other cells | sarcoplasmic reticulum
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| contractile figers within muscle cells | myofibril
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| the strucutral and functional unit of myofibril | sarcomere
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| the pigmented comound in muscle tissue that stores oxygen | myoglobin
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| when a typical skeletal muscle is teased apart and viewd microscopically, it can be seen to consist of many elongated, cylindrical cells called ________ | muscle fibers
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| 1 muscle fiber= | 1 skeletal muscle cell
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| membranous channel that extends inward from a muscle fibe membrane and passes through the fiber | transverse tubule
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| consists of a T-tubule and the segments of sarcoplasmic reticulum on either side | triad
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| fibrous connective tissue that separates each muscle fiber in skeletal muscle | endomysium
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| skeletal muscle is composed of | muscle cells, connective tissue, blood vessels, nerves
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| skeletal muscle fibers are ____ | long, cylindrical, multinucleated
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| length of skeletal muscle | 1mm-4cm
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| skeletal muscle develops from ____, numbers remain ____ | myoblast, constant
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| connective tissue sheet | fascia
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| forms layer under the skin | fascia
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| holds muscles together and separates them into functional grps | fascia
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| carries nerves, blood vessels and lymphatics | fascia
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| continuous with connective tissue of tendons and periosteum | fascia
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| ___-->___-->___-->____-->____ | muscle, fascicle, muscle fiber, myofibrils, thick and thin filaments
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| connective tissue covering muscles provide ___, sites for distribution of ___ and ___, and a means of ___ to skeleton | protection, blood vessels, neurons, attatchment
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