stomach		the muscle responsible for inhaling
digestive		a thick substance that coats much of the opens into the esophagus and "windpipe"
sugar glucose		What system provide the new materials needed for matabolism?
Metabolism		bands of tissue that vibrate to produce sound
inhale		The waste product of aerobic cellular respiration is
collapses		Oxygen enters your blood and carbon dioxide leaves by the process of
diffusion		the total of all the body's process
Ninety		When your diaphragm contracts, you
glottis		__ is the body's most common source of energy.
diaphragm		one of the many tiny divisions of the bronchi
bronchi		the microscopic sacs in which the exchange of gases takes place in the lungs
larynx		the chest cavity
bronchiole		Trachea is to air as esophagus is to
carbon dioxide		A lung ____ when the alveoli lose most of their air.
alveoli		the opening between the vocal folds
vocal folds		"voice box"
epiglottis		carries food to the stomach
esophagus		the organ of the respiratory system responsible for the exchanges of gases
lung		Trachea is to lungs as esophagus is to
trachea		"windpipe"
food		___ percent of the people who die of lung cancer are smokers.
thorax		the two branches of the trachea
mucus		the thin, flexible flap that covers the larynx when swallowing