LAB 50 Flashcards
microscopic air sac for gas exchange
Alveolus
complete ring of hyaline cartilage of inferior larynx
Cricoid Cartilage
partially covers opening of larynx during swallowing
Epiglottis
vocal folds, including the opening between them
Glottis
location of external respiration between alveoli and blood capillaries
Lung
increases surface area of nasal mucous membrane
Nasal Concha
passageway for air and food
Pharynx
potential space between visceral and parietal pleurae
Pleural cavity
air-filled space in skull bone that opens into nasal cavity
Sinus
fold of mucous membrane containing elastic fibers responsible for sounds
Vocal fold (True Vocal Cord)
the exchange of oxygen and carbon dioxide in the lungs
External respiration
the exchange of oxygen and carbon dioxide in the tissues
Internal respiration
secrete protective mucus that catches dust and potential pathogens
Goblet cells
creates a current of mucus that moves any entrapped debris toward the pharynx, which helps prevent respiratory infections
Cilia
represents an area where a bronchus and major blood vessels are located
Hilum
adheres to the surface of each lung, including the fissures between the lobes
Visceral Pleura
covers the internal surface of the thoracic wall and the superior surface of the diaphragm
Parietal Pleura
airway enlargement superior to trachea
Larynx
windpipe anterior to esophagus
Trachea
branched airways extending throughout lungs
Bronchial tree
smaller branches of airways
Bronchioles
largest hyaline cartilage of larynx; covered by part of thyroid gland; more pronounced in males
Thyroid Cartilage (Adam’s Apple)
The right lung has __ lobes: the left lung has __ lobes
3,2
The alveoli are composed of
simple squamous epithelium
The ____ adheres to the surface of the lung
visceral pleura
The __ is the most inferior cartilage of the larynx
cricoid cartilage
Which of the following structures increases the surface area and air turbulence the most during breathing?
nasal conchae
Which of the following airway tubes would have the smallest lumens?
alveolar ducts
