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Respiratory 040813
Respiratory System
| Question | Answer |
|---|---|
| What is the function of the Respiratory System? | To exchange gases. (Oxygen > Carbon Dioxide) |
| What is the process of respiration? | Outside air to the cells within tissues, and the transport of carbon dioxide in the opposite direction |
| What is the difference between respiration and breathing? | Respiration is the transport of oxygen from the outside air to the cells within tissues, and the transport of carbon dioxide in the opposite direction. Breathing is simply the movement of air in and out of the lungs. |
| Where does the oxygen come from? | The oxygen comes from the atmosphere, which is a blanket of gases that surround the Earth. |
| What is the “Pathway of Air”? | Air moves through the nose and mouth into the pharynx, trachea, lungs, bronchi, and finally into the alveoli. |
| Define the nose. | Nostrils separated by a septum, lined with large hairs; mucus traps and filters dust |
| What is the function of the nasal passages? | Lined with mucus that traps dust, filters bacteria, adds moisture to air and warms the air |
| What is the pharynx? | The throat, and it is part of both the respiratory and digestive system. |
| What is the epiglottis? | A flap of skin, which directs food into the esophagus and air into the trachea |
| What is the trachea? | The windpipe; held open by rings of cartilage, takes air to the lungs |
| What are cilia? | Tiny hair-like extensions of the cells that can move together like whips |
| What are the lungs? | The main organs of the respiratory system |
| What are bronchi? | The passages that branch from the trachea and direct air into the lungs |
| What are the alveoli? | Grape-like clusters of air sacs at the ends of the bronchioles inside the lungs |
| Where is oxygen exchanged for carbon dioxide? | In the alveoli. |
| What is the diaphragm? | A large, dome-shaped muscle at the bottom of the chest cavity that aids in breathing |
| What is your breathing rate determined by? | The amount of carbon dioxide in your blood. |
| What disease is linked to smoking and results in reducing the number of alveoli and making them less elastic? | Emphysema |
| What are two physical results of smoking? | Destroys cilia and thickens mucus membrane |
| Why does smoker's cough develop? | To try to clean out the passageways of extra mucus |
| What is the larynx? | Located in the top part of the trachea, which contain the vocal cords (voice box) |
| What are the vocal cords? | Folds of connective tissue that stretch across the opening of the larynx and produce a person’s voice |
| Describe the path that a molecule of oxygen takes as it moves from the air into the alveoli. | The oxygen molecule moves through the nostrils, pharynx, trachea, bronchus, smaller and smaller branches of the bronchial tree, and then into the alveolus. |
| Why does the air rush into your body when you inhale? | When you inhale, the chest activity becomes larger, decreasing the air pressure inside the lungs. This decrease in air pressure causes air to rush into the lungs. |
| When there is a lot of dust in the air, people often cough and sneeze. Explain why this happens. | Dust irritates breathing passages. Coughs and sneezes are the body's response to the irritation; they act to remove the irritants. |
Created by:
lucasea192
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