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Biology Life on Earth

Biology

Quiz 40 :

Action and Support: the Muscles and Skeleton

Quiz 40 :

Action and Support: the Muscles and Skeleton

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Muscles used for fine motor control have:
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Answer:

B

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Cnidarians have a(n)________ skeleton.
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C

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Protein discs that connect sarcomeres are called:
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Answer:

B

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Earthworms and sea anemones move by the actions of circular and longitudinal muscles in the body wall, a system called a:
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The function of the accessory proteins of the thin filaments is to:
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What is the purpose of the sarcoplasmic reticulum?
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An action potential travels into the muscle fiber interior by passing down the:
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The thick filaments of a myofibril are composed of:
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The connective tissues that connect muscles to bones are called:
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Which of these animals is correctly matched with its type of skeleton?
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Which of these muscle components is the smallest?
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The body can control the strength of leg muscle contractions when lifting a heavy object by increasing or decreasing the:
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The site of communication between a neuron and a muscle fiber is called a:
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Which molecule contains a binding site for the attachment of myosin heads?
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T tubules are made of:
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Skeletal muscle appears striped because of:
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The hard exoskeleton of a crustacean:
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The myofibrils of skeletal muscle are organized into units called:
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Skeletal muscle:
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An exoskeleton is found in ________; an endoskeleton is found in ________.
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