Respiratory System
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| What are two functions of the respiratory system? | it moves oxygen from the outside environment into the body and removes carbon dioxide and water from the body.
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| The chemical reactions to release energy that take place inside your cells must have ______. | oxygen
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| What is respiration? | the process which oxygen and glucose undergo a complex series of chemical reactions to release energy.
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| List three products of respiration | energy, carbon dioxide, and water
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| True or false? To a scientist, breathing and respiration mean the same thing | false
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| What organ systems does the respiratory system depend on? | circulatory system and digestive system
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| True or false? When you breathe in air, you breathe in dust, pollen, and microorganisms. | true
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| Air enters the body through two ________ or openings, in the nose | nostrils
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| Air moves through the _______, which is also part of the digestive system. | pharnyx
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| Air moves into the _______, or windpipe. | trachea
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| Air moves through the _______, passages that direct air into the lungs. | bronchi
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| What does a sneeze do? | shoots particles and bacteria out of your nose into the air
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| Another name for the pharynx is the ______. | throat
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| What is the nostrils function? | Openings in the nose through which air enters.
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| What is the function of nasal cavities? | Contain blood vessels that heat the air you breathe in.
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| What is the function of mucus? | Moistens the air and traps particles in the air.
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| What is the function of cilia? | Tiny hairlike extensions that sweep mucus into the throat.
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| What body parts are connected to the pharynx? | Nose and mouth
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| The walls of the trachea are made up of rings of _____ that strengthen the trachea and keep it open, | cartilage
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| True or false? Inside the lungs, each bronchus divides into smaller and smaller tubes. | TRUE
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| What happens in the alveoli? | The blood picks up oxygen from the air inside the alveoli.
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| What occurs during the process of gas exchange? | Oxygen passes through the wall of the alveolus and through the capillary wall into the blood. Carbon dioxide and water pass from the blood into the alveoli.
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| Why can the lungs absorb a large amount of oxygen? | The alveoli provides a large surface area in a relatively small space.
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| True or false? The more oxygen you need, the more slowly you breathe, | FALSE
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| What is the diaphragm? | A large dome-shaped muscle that plays an important role in breathing.
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| Another name for the voice box is the____. | LARYNX
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| What are vocal cords? | Folds of connective tissue, that produces your voice, stretching across the opening of the larynx.
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