chapter 5 Flashcards
(244 cards)
nasal septum
partition separating the right and left nasal cavities
nose
lined with mucous membrane and fine hairs
acts as a filter to moisten and warm entering air
paranasal sinuses
air cavities within the cranial bones that open into the nasal cavities
pharynx
food and air passageway
throat
adenoids
lymphoid tissue located behind the nasal cavity
tonsils
lymphoid tissue located behind the mouth
larynx
location of vocal cords
air enters
(voice box)
epiglottis
flap of cartilage that automatically covers the opening of and keeps food from entering the larynx during swallowing
trachea
passage way for air to bronchi
windpipe
bronchus (pl. bronchi)
branch of trachea that conducts air into the lungs, where it divides
(bronchial tree)
bronchioles
smallest subdivision of the bronchial tree
alveolus (pl. alveoli)
air sacs at end of bronchioles
O2 &CO2 exchange through alveolar walls and capillaries
lungs
two spongelike organs in thoracic cavity
right- 3 lobes
left- 2 lobes
pleura
double-folded serous membrane covering each lung and thoracic cavity
pleural cavity- small space between, contains serous fluid
diaphragm
muscular partition that separates the thoracic & abdominal cavities
aids in breathing process: contract- pull in air, relax- push air out
mediastinum
space between the lungs
contains heart, esophagus, trachea, great blood vessels
adenoid/o
adenoids
alveol/o
alveolus
bronchi/o, bronch/o
bronchus
diaphragmat/o, phren/o
diaphragm
epiglott/o
epiglottis
laryng/o
larynx
lob/o
lobe
nas/o, rhin/o
nose