Circulatory System and Muscle Activity Quiz
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Questions and Answers

What is the primary function of red blood cells in the circulatory system?

  • Send chemical messages to the nervous system
  • Carry nutrients and oxygen to body cells (correct)
  • Prevent disease and fight infection
  • Carry digestive juices to the stomach
  • When riding a bicycle, which condition may result from increased energy output by the leg muscles, and how can the body be restored to its normal condition?

  • Increased carbon dioxide in the blood can be removed by breathing faster (correct)
  • Decreased oxygen can be replaced by digesting an apple
  • Increased sugars in the blood stream can be diluted by drinking water
  • Increased salt wastes can be removed by the heart
  • What is the role of the endocrine system in the body?

  • It sends electrical messages along the spinal cord to muscles and glands
  • It controls bodily functions by means of chemical messengers (correct)
  • It controls activities such as speaking, reading, and writing
  • It controls voluntary actions
  • Which statement describes the role of the nervous system in catching a baseball?

    <p>It tells arm muscles to contract</p> Signup and view all the answers

    Which body system is responsible for taking in oxygen and getting rid of carbon dioxide?

    <p>Respiratory system</p> Signup and view all the answers

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