Flash Cards Chapter 6 2014. A muscle which assists another in an action is called a(n):
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Transcript of Flash Cards Chapter 6 2014. A muscle which assists another in an action is called a(n):
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Flash Cards
Chapter 6 2014
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A muscle which assists another in an action
is called a(n):
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A muscle which does most of the work is called:
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A muscle which opposes the action of another muscle is called the:
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Muscles are covered by several layers of fibrous connective tissue called:
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Skeletal muscles are named according to:
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What is the function of ligaments?
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What muscle is called the "kissing" muscle?
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What muscle is used for blinking and squinting?
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What is the function of the Intercalated disks with gap junctions?
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The structure in cardiac muscle which allows contractions to
spread quickly are:
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Identify the type of muscle contraction
• When the tension of the muscle fiber is used only to support rather than lift a load.
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Sarcolemma
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Sarcoplasm
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Is a red pigment that stores oxygen for muscle contraction
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Is a polysaccharide that stores energy for muscle contraction
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According to sliding filament theory when a muscle fiber contracts, what happens
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Identify the type of muscle contraction
• When the tension of muscle fibers is sufficient to lift a load, many fibers change length as they lift the load.
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Identify all the chemicals involved in muscle contraction.
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Where is myosin found in skeletal muscle fiber?
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What two important binding sites are found on cross bridges of
myosin?
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The thin filament consists of three protein molecules, name them:
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Actin contains binding sites for:
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What is the function of tropomyosin?
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What is the function of troponin?
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What causes tropomyosin to move away from myosin binding sites on
actin?
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What causes the myosin binding sites on actin to be exposed?
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What causes the tropomyosin to cover back over actin binding sites?
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What is required to move calcium ions from sarcoplasm back into
sarcoplasmic reticulum?
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After a sarcomere has contracted fully and calcium ion concentration within
cytosol decreases what happens within the sarcomere?
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What causes skeletal muscles to contract?
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What is a motor neuron?
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What part of motor neuron carries impulses to muscle?
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Invaginations of sarcolemma penetrating deep into interior of
muscle cell are called:
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The space between axon terminal and motor end plate
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The swollen distal end of motor neuron axon
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The muscle cell membrane
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Structures within axon terminal that contain neurotransmitter acetylcholine
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The contractile unit of muscle fiber that extends from one Z line to the
next is called:
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Identify the structures within skeletal muscle fibers that serve as
reservoirs of calcium ions
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A folded region of sarcolemma at neuromuscular junction is called?
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What is first event in neuromuscular junction?
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What happens at neuromuscular junction when action potential
arrives at axon terminal?
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What happens to acetylcholine after is released from its receptor
on the motor end plate?
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what happens as an action potential moves down T-tubules?
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What happens when calcium ions are present in cytosol of muscle
fiber?
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What is Power stroke?
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What is the role of ATP during muscular contraction?
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Occurs at death because muscles cannot relax without ATP
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The striations observed in skeletal and cardiac muscles are produced by:
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Myosin binds to actin:
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A motor neuron and all of the muscle fibers that it innervates is
called:
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Nerve impulses travel to the muscles from the spinal cord through:
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List the events that occur during muscle contraction, the power-stroke:
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At a neuromuscular junction, nerve impulses cause:
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Explain the effect of Botox