Respiratory System (Med 165)
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Created by:
bdanner on September 13, 2010
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Classes:
Study guide, MCI Graduates 12/2011, MCI VA Beach
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27 terms
Terms | Definitions |
|---|---|
 Ventilation (External Respiration) | The movement of air through the conducting passages between the external environment and the lungs |
| Internal Respiration | The exchange of oxygen and carbon dioxide between the air in the lungs and the blood in the surrounding capillaries |
| Cellular Respiration | The exchange of gases between tissue cells and the blood in the tissue capillaries |
| Pleura | Membranes that cover the lungs |
| Trachea | Medical term for "windpipe" |
| Larynx | Medical term for "voice box" |
| CO2 | Abbreviation for carbon dioxide, a gas that is considered a metabolic waste product that we expell through breathing |
| Diaphragm | A large dome-shaped muscle that divides the thoracic and abdominal cavities. Its contraction aids the thoracic muscles in moving air through breathing passages |
| Surfactant | A lipoprotein substance that reduces the surface tension of the alveoli so they do not adhere and collapse |
| Alveoli | Thin tissued air sacs where oxygen and carbon dioxide diffuse |
| Left Bronchus | Longer, narrow, and less vertical than the right bronchus |
| Right Bronchus | Shorter, wider, and more vertical than the left bronchus. Easier for particles to enter than the left side |
| O2 | Abbreviation for "oxygen". A gas taken from the atmosphere into the lungs. it is necessary for cellular metabolism to occur. |
| Epiglottis | Long leaf-shaped structure that prevents food from entering the respiratory system |
| Pharynx | Medical term for "throat" |
| Glottis | The opening between the vocal cords |
| True Vocal Cords | Consist of the lower folds of the larynx |
| Eupena | The medical term for "normal, regular breathing" |
| Dyspena | The medical term for "difficult, labored breathing" |
| Tidal Volume | The amount of air moving in and out of the lungs with each breath |
| Cilia | Hair like structures of the respiratory system that propel mucus with trapped particles toward the pharynx |
| Mediastinum | The open area between the lungs that contains the heart |
| Upper Respiratory System | Nose, pharynx, larynx |
| Lower Respiratory System | Trachea, Bronchial Tree (bronchi, bronchioles, alveoli), lungs |
| Inspiration | The active phase of ventilation. Taking in air or "inhaling" |
| Phren | The word part meaning "diaphram" |
| Trache/o | The word part meaning "windpipe" |
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