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BIO 192: Respiratory System

Terms in this set (31)

Thyroid cartilage (Adam's apple)
large shield-like plate of hyaline cartilage, forms anterior wall of larynx
lung lobes
3 right, 2 left
Epiglottis
A flap of tissue that seals off the windpipe and prevents food from entering.
glottis
opening between the vocal cords in the larynx
Esophagus
A muscular tube that connects the mouth to the stomach.
auditory tube orifice
carina
Point at which the trachea bifurcates (divides) into the left and right mainstem bronchi.
nasal conchae
two bones that help to complete the nasal cavity by forming the side and lower wall
primary bronchi
The first branches of the trachea. There are two primary bronchi, one for each lung.
secondary bronchi
The primary bronchi split into these smaller tubes within the lungs
tertiary bronchi
branches of the secondary bronchi that divide into bronchioles; also called segmental bronchi
terminal bronchioles
smaller than 0.5 millimeter and these mark the end of the conducting zone
external nares
nostrils
internal nares
Internal openings of the nasal cavity
hilum
indented opening in the kidney where vessels enter and leave
vocal folds (true vocal cords)
vibrate with expired air for sound production
Surfactant
chemical produced in the lungs to maintain the surface tension of the alveoli and keep them from collapsing
tracheal cartilage
C shaped rings of cartilage that give support to the trachea
Trachea
Allows air to pass to and from lungs
uvula
soft tissue hanging from the middle of the soft palate
cricoid cartilage
the ring-shaped structure that forms the lower portion of the larynx
nasal vestibule
nasal cavity superior to nostrils
hard palate
roof of the mouth
soft palate
posterior portion, not supported by bone
hyoid bone
U-shaped bone at the base of the tongue that supports the tongue and its muscles.
respiratory bronchioles
branches of the terminal bronchioles that subdivide into several alveolar ducts
Laryongopharynx
Part of a larger structure, however, this section is used a passageway for air only.
nasopharynx
region of the pharynx at the back of the nose and above the soft palate
oropharynx
central portion of the pharynx between the roof of the mouth and the upper edge of the epiglottis
Alveoli
any of the many tiny air sacs in the lungs where the exchange of oxygen and carbon dioxide takes place.
Larynx (voice box)
A tube supported by a cartilage frame that passes air from the pharynx to the lungs;
Often called "Adam's Apple";
Contains vocal cords that allow us to make sounds.
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