Term | Definition |
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 |