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