Muscles: Function and Types
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Questions and Answers

Which group of muscles is mainly responsible for breathing?

  • Muscles of the back
  • Trunk muscles (correct)
  • Head and neck muscles
  • Abdominal muscles

Which muscles hold the spinal column erect?

  • Trunk muscles
  • Muscles of the limbs
  • Pelvic muscles (correct)
  • Abdominal muscles

What is the main function of abdominal muscles?

  • Facial expressions
  • Head movements
  • Keeping viscera in place (correct)
  • Breathing

Where do the lower limb muscles have strong anchorage points?

<p>Pelvis (B)</p> Signup and view all the answers

Which group of muscles is responsible for head movements?

<p>Head and neck muscles (C)</p> Signup and view all the answers

What type of muscles are in the limbs and under conscious control?

<p>Voluntary muscles (B)</p> Signup and view all the answers

Which system controls involuntary muscles like those in the heart and digestive tract?

<p>Autonomic nervous system (C)</p> Signup and view all the answers

What happens when the brain instructs the biceps muscle to contract?

<p>The triceps muscle contracts (A)</p> Signup and view all the answers

What is the unique ability of muscle tissues mentioned in the text?

<p>Contraction (B)</p> Signup and view all the answers

Which muscles perform voluntary contractions and relaxations under conscious control?

<p>Muscles in the limbs (B)</p> Signup and view all the answers

What kind of contractions do muscles in the heart and large blood vessels perform?

<p>Involuntary contractions (A)</p> Signup and view all the answers

Which group of muscles holds the organs inside the pelvic cavity firmly in place?

<p>Abdominal muscles (C)</p> Signup and view all the answers

Where is the bulk of upper limb muscles located?

<p>At the shoulder (D)</p> Signup and view all the answers

Which muscles are mainly responsible for facial expressions and speech?

<p>Head and neck muscles (D)</p> Signup and view all the answers

What is the main function of trunk muscles attached to two or more bones?

<p>Responsible for breathing (A)</p> Signup and view all the answers

Where do lower limb muscles have strong anchorage points especially?

<p>Pelvis (A)</p> Signup and view all the answers

What is responsible for the contraction and relaxation of muscles?

<p>Tiny filaments in muscle tissue (A)</p> Signup and view all the answers

Which muscles perform involuntary contractions?

<p>Muscles in the heart and digestive tract (C)</p> Signup and view all the answers

Why do voluntary muscles, such as those in the limbs, perform voluntary contractions?

<p>Under conscious control of the nervous system (A)</p> Signup and view all the answers

What stimulates the biceps muscle in the example given in the text to contract?

<p>Brain signals (B)</p> Signup and view all the answers

What type of signals control involuntary muscles?

<p>Autonomic nervous system signals (C)</p> Signup and view all the answers

Which characteristic describes muscles that work in coordinated groups according to the text?

<p><strong>Antagonistic</strong> relationship (A)</p> Signup and view all the answers

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