Respiration and Excretion Flashcards
1
Q
One of the two major breathing organs
A
Lung (s)
2
Q
the openings through which air enters the body
A
nostrils
3
Q
warms and moistens air coming into the body
A
nasal cavity
4
Q
cartilage-ringed opening at the front of the pharynx
A
trachea
5
Q
a tiny air sac in the lung
A
alveolus / alveoli
6
Q
two branches into which the trachea divides
A
bronchi
7
Q
microscopic subdivisions of the bronchi within the lungs
A
bronchioles
8
Q
done-shaped muscle below the chest cavity
A
diaphragm
