Sensory and Motor Neurons
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Sensory and Motor Neurons

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Questions and Answers

Which of the following word roots refers to muscle?

  • Myco/o
  • Sacr/o
  • Sthen/o
  • Myo/o (correct)

    • Which of the following terms refers to the attachment of a muscle to the bone or structure that does not move when the muscle contracts?

  • Belly
  • Origin (correct)
  • Insertion
  • Tendon

    • What does the term intrinsic refer to in regard to muscle?

  • Intrinsic describes a muscle that has an origin and insertion located in different body regions.
  • Intrinsic describes the attachment of a muscle to the bone or structure that does not move when the muscle contracts.
  • Intrinsic describes the attachment of a muscle to the bone or structure that does move when the muscle contracts.
  • Intrinsic describes a muscle that has an origin and insertion located in the same body region. (correct)

    • Which division of the PNS prepares the body for physical activity or fight or flight?

    <p>Sympathetic</p> Signup and view all the answers

    Which part of a neuron carries the nerve impulse?

    <p>Axon</p> Signup and view all the answers

    What part of a neuron usually receives the information?

    <p>Dendrite</p> Signup and view all the answers

    What part of the axon is called the trigger zone?

    <p>Axon hillock</p> Signup and view all the answers

    Which mineral is required for muscle cell function?

    <p>Calcium</p> Signup and view all the answers

    What is the recommended daily allowance of protein for a person of average weight?

    <p>46–56 g</p> Signup and view all the answers

    Which of the following is not a function of the muscular system?

    <p>Electrolyte balance</p> Signup and view all the answers

    What muscular disorder is characterized by painful muscle spasms?

    <p>Cramp</p> Signup and view all the answers

    Which of the following is the term for a muscle that holds an origin stable for another muscle?

    <p>Fixator</p> Signup and view all the answers

    Which of the following is the term for muscles that have the same action?

    <p>Synergists</p> Signup and view all the answers

    Which of the following is the term for muscles that have opposite actions?

    <p>Antagonists</p> Signup and view all the answers

    Which of the following is the term for the main muscle that performs an action?

    <p>Prime mover</p> Signup and view all the answers

    Which of the following muscles does not originate on the ribs?

    <p>Diaphragm</p> Signup and view all the answers

    What is the function of the rectus abdominus?

    <p>To compress the abdomen</p> Signup and view all the answers

    Which of the following muscles inserts on the metacarpals and the carpals?

    <p>Extensor carpi ulnaris</p> Signup and view all the answers

    What are the functional units of a skeletal muscle fiber?

    <p>Sarcomere</p> Signup and view all the answers

    Which statement accurately describes a muscle's response to nerve stimulation?

    <p>All of these answers are correct.</p> Signup and view all the answers

    Which theory of muscle contraction involves thick myofilaments grabbing thin myofilaments and pulling them toward the center of the sarcomere?

    <p>Sliding filament theory</p> Signup and view all the answers

    What is a power stroke?

    <p>Myosin pulling on actin to draw Z-lines toward the center, shortening the sarcomere</p> Signup and view all the answers

    In which phase of a muscle contraction is calcium actively transported back to the sarcoplasmic reticulum?

    <p>Relaxation phase</p> Signup and view all the answers

    Which lobe of the cerebrum is responsible for hearing?

    <p>Temporal</p> Signup and view all the answers

    What is the function of the frontal lobe of the cerebrum?

    <p>All of these are correct</p> Signup and view all the answers

    What is the function of the occipital lobe of the cerebrum?

    <p>Vision</p> Signup and view all the answers

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