RESPIRATORY NORMAL STRUCTURE & FUNCTION

carina

a projection of the lowest tracheal cartilage that forms a ridge between the two bronchi; used as a landmark for endoscopy; any ridge or ridge-like structure

hilum

an anatomic depression in an organ where vessels and nerves enter

hyperpnea

increase in the depth and rate of breathing to meet the body’s needs, as in exercise

hypopnea

decrease in the rate and depth of breathing

nares

the external openings of the nose; the nostrils

nasal septum

the partition that divides the nasal cavity into two parts

tachypnea

excessive rate of breathing, which may be normal, as in exercise