Chapter 22 Part 1 Flashcards
(27 cards)
Pulmonary ventilation- movement of air into and out of lungs
Respiratory system
- external respiratory exchange: exchange between lungs and blood
- transport: O2 and CO2 in the blood
Respiratory and circulatory system
-internal respiration: O2 and CO2 exchange between systemic blood vessels and tissues
Circulatory system
Site of gas exchange
Respiratory zone
Conduit to gas exchange site
Conducting zone
Diaphragm and ventilation muscles
Respiratory muscles
In and posterior to external nose
Nasal cavity
Nasal cavity superior to nostrils
Vestibule
Smell receptors
Olfactory mucosa
Nose hair
Vibrissae
Muscular tube connects nasal cavity and larynx/esophagus
Pharnyx
Air passageway posterior to nasal cavity
Nasopharnyx
Passageway for food and air
Oropharnyx
Opening to oral cavity
Isthmus of the fauces
Passageway for food and air
Laryngopharnyx
Provides airway, routes air and food, voice production
-houses epiglottis
Larynx
True vocal cords
Vocal folds
False vocal cords
Vestibular folds
Windpipe
Trachea
Respiratory bronchioles, alveolar ducts, alveolar sacs (clusters), alveoli
Respiratory zones
Nose, nasopharynx, larynx, trachea, bronchi, bronchioles
Conducting zone
Main site for gas exchange
Alveoli
Concavity on Left lung where heart fits
Cardiac notch
2 lobes; oblique fissure, cardiac notche
Left lung
