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L4.3 – Respiration and Circulation: 6th Grade  ...

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  • What happens to breathing rate during exercise?
    It decreases
    It stops
    It increases
    It stays the same
  • What tool do doctors use to listen to the heart?
    Barometer
    Microscope
    Stethoscope
    Thermometer
  • What system adjusts breathing when carbon dioxide levels rise?
    Skeletal system
    Respiratory system
    Muscular system
    Nervous system
  • What gas do you breathe in?
    Oxygen
    Helium
    Nitrogen
    Carbon dioxide
  • What do red blood cells carry?
    Oxygen
    Water
    Carbon dioxide
    Protein
  • What happens to heart rate during exercise?
    It stops
    It increases
    It decreases
    It stays the same
  • Which system controls breathing rate?
    Muscular system
    Nervous system
    Circulatory system
    Respiratory system
  • What happens when carbon dioxide levels in blood increase?
    Heart rate slows
    Breathing stops
    Muscles relax
    Breathing rate increases
  • What is the function of the heart?
    Stores red blood cells
    Pumps blood throughout the body
    Controls breathing rate
    Creates oxygen
  • What is breathing rate?
    Speed of circulation
    Amount of oxygen in blood
    Number of breaths per minute
    Pressure in lungs
  • How do the respiratory and circulatory systems work together?
    The heart creates oxygen
    The lungs store red blood cells
    The lungs add oxygen to blood that the heart pumps
    The brain sends oxygen to lungs
  • What do veins do?
    Carry waste to the skin
    Carry blood away from the heart
    Carry blood to the heart
    Carry oxygen to the lungs
  • Which system brings oxygen to cells?
    Skeletal system
    Respiratory system
    Circulatory system
    Muscular system
  • What is the function of the lungs?
    Create energy
    Store oxygen
    Exchange oxygen and carbon dioxide
    Control heartbeat
  • What is the function of the circulatory system?
    Stores air in lungs
    Carries oxygen and nutrients to cells
    Controls breathing
    Produces oxygen
  • What carries oxygen and nutrients to all body parts?
    Bones
    Ligaments
    Blood vessels
    Nerves
  • What gas do you breathe out?
    Carbon dioxide
    Hydrogen
    Oxygen
    Nitrogen
  • Why does exercise increase heart and breathing rate?
    The body needs more oxygen
    The lungs get smaller
    The brain slows activity
    The body needs more food
  • What is the main function of the respiratory system?
    Produces energy
    Controls muscles
    Stores blood
    Brings oxygen into the body and removes carbon dioxide
  • What is heart rate?
    Number of heartbeats per minute
    Amount of oxygen in lungs
    Speed of blood flow
    Temperature of blood
  • Which organ system removes carbon dioxide from the blood?
    Respiratory system
    Skeletal system
    Nervous system
    Muscular system
  • What is exchanged in the lungs?
    Oxygen and carbon dioxide
    Carbon and hydrogen
    Hydrogen and helium
    Nitrogen and oxygen
  • What organ sends signals to control breathing?
    Stomach
    Brain
    Heart
    Lungs
  • What do arteries do?
    Carry nutrients to the stomach
    Carry blood to the heart
    Carry air to lungs
    Carry blood away from the heart
  • What materials do lungs expel?
    Carbon dioxide
    Hydrogen
    Nitrogen
    Oxygen
  • What materials do lungs bring in?
    Oxygen
    Nitrogen
    Water vapor
    Carbon dioxide
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