10) decompression sickness is a painful condition that develops when a person is
exposed to a sudden drop in atmospheric pressure. bubbles of ________ gas are
responsible for the problem.
a) nitrogen
b) oxygen
c) carbon dioxide
d) helium
e) carbon monoxide
11) breathing that involves active inspiratory and expiratory movements is called
a) eupnea.
b) hyperpnea.
c) diaphragmatic breathing.
d) costal breathing.
e) shallow breathing.
12) blood is supplied to the myocardium by
a) the coronary sinus.
b) contact with blood in the pumping chambers.
c) the coronary arteries.
d) arteries that branch from the pulmonary arteries.
e) arteries that branch off the subclavian arteries.
13) during ventricular systole, the
a) atria are contracting.
b) blood is entering the ventricles.
c) av valves are closed.
d) pressure in the ventricles remains constant.
e) pressure in the aorta remains constant.
14) if the lingual frenulum is too restrictive, an individual
a) has a condition called ankyloglossia.
b) has difficulty eating.