Muscle Notes
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
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| What is the ability of skeletal muscle to shorten with force? | show 🗑
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| What is the capacity of skeletal muscle to respond to a stimulus? | show 🗑
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| What is the ability to be stretched? | show 🗑
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| show | elasticity
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| Each skeletal muscle is surrounded by a connective tissue sheath called the _______. | show 🗑
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| show | fascia
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| -thin myofilaments -2 strands of pearls twisted together | show 🗑
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| -thick myofiliments - bundles of mini golf clubs | show 🗑
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| Actin and myosin form highly ordered units called ________, which are joined end to end to form the myofibril. | show 🗑
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| What is the basic structural and functional unity of the muscle? | show 🗑
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| show | around the z line in the i band
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| What kind of charge does the outside of the cell membrane have? | show 🗑
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| show | negative
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| show | motor neurons
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| show | ATP
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| what is tetany? | show 🗑
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| show | without oxygen
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| what is aerobic respiration? | show 🗑
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| The ________ is the amount of oxygen needed in chemical reactions to convert lactic acid to glucose and to replenish the depleted stores of creatine phosphate stores in muscle cells. | show 🗑
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| show | muscle fibers
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| isometric | show 🗑
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| show | equal tension ex. throwing bowling balls
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| show | fast twitch fibers and the white meat of a chicken breast
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| which type of fiber contracts slower and is more resistant to fatigue? also give an example of this. | show 🗑
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| show | origin
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| show | synergists
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| how are some ways muscles named? | show 🗑
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| raises the eyebrows | show 🗑
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| closes eyelids and causes crows feet | show 🗑
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| show | orbicularis oris
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| show | chewing
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| show | 4
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| the sliding of actin myofilaments past myosin myofilaments during contraction is called the __________. | show 🗑
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| the time between application of a stimulus to a motor neuron and the beginning of a contraction is called the _______. | show 🗑
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| what is the increase in umber of motor units being activated is called _________. | show 🗑
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| the process in which a muscle becomes shorter and tighter | show 🗑
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| show | muscle fibers
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| show | skeletal muscle
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| layer of areolar connective tissue that ensheaths each individual myocyte | show 🗑
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| only found in heart, pumps blood through body | show 🗑
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| transparent tubular sheath which envelops the fibers of skeletal muscles | show 🗑
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| regulates calcium ion concentration | show 🗑
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| part of a nerve cell where impulses are conducted | show 🗑
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| show | muscle fatigue
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| What did the tennis ball experiment represent? | show 🗑
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| show | fixators
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| show | true
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| The H and I bands shorten, but the A bands do change in length. true or false? | show 🗑
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| A muscle fiber will not respond to stimulus until that stimulus reaches a level called ________, at which point the muscle fiber will contract maximally. | show 🗑
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| show | all-or-none response
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| show | contraction phase
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| show | mitochondria
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| ATP is short lived and very unstable. t/f? | show 🗑
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| show | true
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| It is necessary for muscle cells to constantly produce ATP. When at rest they can’t stockpile ATP but they can store another high-energy molecule, called ___________. | show 🗑
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| what flattens the cheeks? | show 🗑
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| show | zygomaticus
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| show | levator labii superioris
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| frowning | show 🗑
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| what changes the shape of the tongue? | show 🗑
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| show | extrinsic tongue muscles
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| lateral neck muscle and prime mover...rotates and abducts the head | show 🗑
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| show | thoracic muscles
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| show | external intercostals
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| show | internal intercostals
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| tendious area of the abdominal wall | show 🗑
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| show | rectus abdominis muscle
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| show | pectoralis major
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| show | latissimus dorsi
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| show | deltoid
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| extends the forearm | show 🗑
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| flexes the forearm | show 🗑
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| flexes forearm | show 🗑
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| show | brachioradialsis
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| flexes the wrist | show 🗑
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Created by:
hjcoope2
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