chapter 21 A&P 2
Asthma is
an acute condition resulting from unusually sensitive, irritated conducting airways.
Air remaining in the conducting portion of the respiratory system that does not reach the alveoli is known as
anatomic dead space
A period in which breathing has stopped, followed by a forceful expulsion of air, is termed
apnea
Are chemoreceptors more sensitive to blood CO2 levels or blood O2 levels?
blood CO2 levels
A mucosa consists of
both an epithelium and an underlying layer of areolar tissue
Breathing through the nose rather than the mouth is advantageous for all of the following reasons except
decreased breath volume on inhalation
After a quiet expiration, the amount of air in your lungs is called the
functional residual capacity
Air moves out of the lungs when the pressure inside the lungs is
greater than the pressure in the atmosphere
All of the following are true regarding carbonic anhydrase except that
it can convert carbonic acid into CO2
All of the below are sensory stimuli that can stimulate respiratory reflexes except
nociceptors
Air passing through the glottis vibrates the vocal folds and produces
phonation
Air entering the body is filtered, warmed, and humidified by the
upper respiratory tract
A hemoglobin molecule contains ________ globular protein subunits.
2 alpha and 2 beta