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Respiratory System

The Respiratory System

TermDefinition
Respiratory System consists of nose (nasal cavity), pharynx, larynx, bronchi, bronchioles, alveoli, lungs
Purpose of the Respiratory System furnish oxygen to the body's cells and to remove carbon dioxide
External Respiration air is brought into the lungs and oxygen and carbon dioxide are exchanged in the blood within the capillaries surrounding the alveoli.
Internal Respiration oxygen and carbon dioxide move between the blood and the body's cells
Cilia small hairs that line the nose
pharynx throat
3 divisions of the pharynx nasopharynx, oropharynx, and laryngopharynx
nasopharynx posterior to the nasal cavity
oropharynx middle portion located behind the mouth
laryngopharynx lower portion behind the larynx
3 pairs of lymphoid tissues (tonsils) adenoids (aka pharyngeal tonsils), palatine tonsils, lingual tonsils
location of pharyngeal tonsils nasopharynx
palatine tonsils oropharynx
lingual tonsils base of the posterior portion of the tongue
larynx (voice box) a cartilaginous structure located between the pharynx and trachea
glottis space between the vocal cords; closes during swallowing to keep food out of the respiratory tract
epiglottis leaf-shaped cartilage located above the glottis; plaplike structure that covers the larynx to prevent swallowed food from entering the trachea and lungs
trachea (windpipe) a cartilaginous tube that extends from the pharynx to the main bronchi
bronch/o, bronchi/o bronchus
laryng/po larynx
nas/o, rhin/o nose
oxia oxygen
or/o mouth, opening
pharyng/o pharynx
phonia voice
phren/o diaphragm
pleur/o pleura
pnea breathing
pneum/o, pneumon/o air, lung
pulmon/o lung
sinus/o sinus cavity
thorac/o, thorac/i, thoracic/o thorax, chest
trache/o trachea
Created by: amb5683