Respiratory system Flashcards
Primary functions
To provide oxygen to body tissues for cellular respiration
Remove the waste product carbon dioxide
Help to maintain acid-base balance
Secondary functions
Sensing odors
Speech production
Straining (during childbirth or coughing)
Conducting Zone
Moves air in and out of lungs
Respiratory Zone
moves gas in and out of blood
Nose
The major entrance and exit for the respiratory system
Pharynx
part of the throat situated immediately posterior to the mouth and nasal cavity, and superior to the esophagus and larynx.
Larynx
the cartilaginous structure that connects the pharynx to the trachea and helps regulate the volume of air that enters and leaves the lungs.
Trachea
a tube that connects the pharynx or larynx to the lungs, allowing the passage of air.
Alveolar duct
a tube composed of smooth muscle and connective tissue, which opens into a cluster of alveoli.
Alveolus
one of the many small, grape-like sacs that are attached to the alveolar ducts.
Alveolar sac
a cluster of many individual alveoli that are responsible for gas exchange.
Boyle’s Law (formula)
P1V1 = P2V2
Boyle’s Law (text explanation)
Pressure and volume are inversely related.
Inspiration
breathing in
Expiration
breathing out