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Chapter 13 1-15
The Respiratory System 1-15
15
Anatomy
11th Grade
02/26/2012

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Term
Respiratory System
Definition
organ system that carries out gas exchange; includes the nose, pharynx, larynx, trachea, bronchi, and lungs
Term
alveoli
Definition
terminal air sacs located in the lungs;gass exchanges with the blood happen only here
Term
nose
Definition
the only external, visible part of the respiratory system
Term
nasal cavity
Definition
the interior of the nose
Term
conchae
Definition
3 mucosa-covered projections which greatly increase the surface area of the mucosa exposed to the air; increase the air turbulance in the cavity
Term
palate
Definition
a partition that separates the nasal cavity from the oral cavity
Term
hard palate
Definition
where the palate is supported by bone anteriorly
Term
soft palate
Definition
the unsuported posterior part of the hard palate
Term
cleft palate
Definition
a genetic defect in which the bones forming the palate do not fuse medially; results in breathing difficulties and problems with chewing and speaking
Term
rhinitis
Definition
inflamation of the nasal mucosa caused by cold viruses or allergies
Term
sinusitis
Definition
sinus inflamation in which the sinus passages are blocked with mucos or infectious matter
Term
pharyngotympanic tube
Definition
tube that connects the middle ear and the pharynx: allows pressure to be equalized on both sides of the ear drum; aka Eustachian tube
Term
tonsils
Definition
clusters of lymphatic tissue located in the pharynx
Term
paranasal sinuses
Definition
Any of the paired sinus cavities of the human face; includes the frontal, ethmoid, and sphenoid sinuses
Term
Nasopharynx
Definition
The area of the upper throat that lies behind the nose
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