Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
17 Cards in this Set
- Front
- Back
|
Vibrissae |
Nasal hairs |
|
|
Surfactant |
Coats each alveolus, acting as a detergent that lowers surface tension and prevents alveolus from collapsing on itself. |
|
|
Negative-Pressure Breathing |
Mechanism wear the lower pressure in intrapleural space drives air into the lungs. |
|
|
Intrapleural Space |
A thin layer of fluid between the pleurae. |
|
|
External Intercostal Muscles |
One of the layers of muscles between the ribs that expands the thoracic cavity. |
|
|
Intrathoracic Volume |
Volume of chest cavity. Increases as diaphragm flattens. |
|
|
Internal Intercostal Muscles |
Pull rib cage down along with abdominal muscles. |
|
|
Spirometer |
Instrument that measures a number of lung volumes, although it cannot measure the amount of air remaining in the lung after complete exhalation. |
|
|
Total Lung Capacity (TLC) |
Maximum volume of air in the lungs when one inhales completely. |
|
|
Residual Volume (RV) |
Minimum volume of air in the lungs when one exhales completely. |
|
|
Vital Capacity (VC) |
Difference between the minimum and maximum volume of air in the lungs (TLC-RV). |
|
|
Tidal Volume (TV) |
Volume of air inhaled or exhaled in a normal breath. |
|
|
Expiratory Reserve Volume (ERV) |
Volume of additional air that can be forcibly exhaled after a normal exhalation. |
|
|
Inspiratory Reserve Volume (IRV) |
Volume of additional air that can be forcibly be inhaled after a normal inhalation. |
|
|
Ventillation Center |
Neurons in the medulla oblongata that fire rhythmically to cause regular contraction of respiratory muscles. |
|
|
Thermoregulation |
Regulation of body temperature via vasodilation/vasoconstriction. |
|
|
Mucociliary Escalator |
Cilia in internal areas propelling mucus upwards to the oral cavity. |
