Airway Mgmnt and Ventilation Chap 15 (Rio) Flashcards
(85 cards)
Name primary functions of the Upper Airway
Warm, Filter, and Humidify Inspired air (p712)
Name primary functions of the Lower Airway
Exchange Oxygen and CO2 (p715)
Name the point of division between the upper and lower airways.
Larynx (p. 712) Glottis (lecture)
Name the 3 portions of the pharynx
Nasopharynx, Oropharynx, Laryngopharynx (p713)
Another term used to describe the Laryngopharynx?
Hypopharynx (p713)
The most common cause of anatomic upper airway obstruction?
The tongue (p714)
The Lower Airway extends between what internal anatomical landmarks?
The glottis to the pulmonary capillary membrane (p715)
The first ring of the trachea and the only one to form a complete ring.
The cricoid cartilage (p715)
Name the anatomic space located between the base of the tongue and the epiglottis.
the vallecula (p716)
The trachea and mainstem bronchi are lined with what 3 things?
- Goblet cells (mucous-producing)
- cilia
- beta2 adrenergic receptors (p716)
What part of the lung is the functional site for the exchange of oxygen and CO2?
The alveoli. (p716)
A phospholipid compound that decreases surface tension on the alveolar walls and keeps them expanded?
surfactant (p716)
Term used to describe the collapse of the alveoli.
atelectasis (p716)
What is ventilation?
The process of moving air into and out of the lungs (p717)
Name the two phases of ventilation.
- inhalation(inspiration)
- exhalation(expiration) (p717)
Term used to describe the active, muscular part of breathing.
Inhalation (p717)
What is oxygenation?
The process of loading oxygen molecules onto hemoglobin molecules in the bloodstream (p717)
What is respiration?
The actual exchange of oxygen and carbon dioxide in the alveoli and the tissues of the body. (p717)
During inhalation, the thoracic cage expands, decreasing air pressure in the thorax, which pulls air through the trachea, causing the lungs to fill. This process is___?
negative-pressure ventilation (p718)
With ineffective or no chest movement, negative intrathoracic pressure cannot be created and the only way to move air into the lungs is with____?
positive-pressure ventilation (p719)
Oxygen transfer from air into the capillaries in the alveoli occurs because of what process?
diffusion (p719)
Volume of inhaled air that reaches the alveoli and participates in gas exchange; equal to tidal volume minus dead space volume; approx 350 mL in average adult; also called alveolar ventilation (p719)
Alveolar volume
A law of gas that states the amount of gas in a solution varies directly with the partial pressure of a gas over the solution. (E.g. As pressure of a gas over a liquid decreases, the amount of gas dissolved in the liquid will also decrease.)
Henry’s Law (p719)
The metabolism that takes place in the absence of oxygen; principal by-product is lactic acid.
Anaerobic metabolism (p724)