110 CHAPTER 4• Respiratory System
Word Element Meaning Word Analysis
pulmon/o lung pulmon/o/logist (pŭl-mŏ-NŎL-ŏ-jĭst): physician who specializes in treating
pathological conditions of the lungs
-logist: specialist in the study of
thorac/o chest thorac/o/pathy (thō-răk-ŎP-ă-thē): disease of the thorax or the organs it contains
-pathy: disease
Suffixes
-algia pain pleur/algia(ploo-RĂL-jē-ă): pain in the pleura
pleur: pleura
-dynia thorac/o/dynia(thō-răk-ō-DĬN-ē-ă): pain in the chest
thorac/o: chest
-ectasis dilation, atel/ectasis(ăt-ĕ-LĔK-tă-sĭs): abnormal condition characterized by the collapse of
expansion alveoli
atel: incomplete; imperfect
Atelectasis is characterized by the collapse of alveoli, preventing respiratory exchange
of carbon dioxide and oxygen in part of the lungs.
-osis abnormal cyan/osis(sī-ă-NŌ-sĭs):bluish discoloration of the skin and mucous membranes
condition; cyan: blue
increase (used Cyanosis is caused by a deficiency of oxygen in the blood.
primarily with
blood cells)
-osmia smell an/osmia(ăn-ŎZ-mē-ă): loss or impairment of the sense of smell, which usually
occurs as a temporary condition
an-: without, not
-oxia oxygen hyp/oxia(hī-PŎKS-ē-ă): abnormally low level of oxygen at the cellular level
hyp-: under, below, deficient
In hypoxia, the whole body (generalized) or a portion of the body (tissue hypoxia) is
deprived of adequate oxygen.
-phagia swallowing, aer/o/phagia(ĕr-ō-FĂ-jē-ă): swallowing air
eating
aer/o: air
-pnea breathing a/pnea(ăp-NĒ-ă): temporary cessation of breathing
a-: without, not
Apnea may be a serious symptom, especially in patients with other potentially life-
threatening conditions. Some types of apnea include newborn, cardiac, and sleep.
-spasm involuntary pharyng/o/spasm(făr-ĬN-gō-spăzm): spasm of muscles in the pharynx
contraction,
twitching
pharyng/o: pharynx (throat)
-thorax chest py/o/thorax(pī-ō-THŌ-răks): accumulation of pus in the thorax
py/o: pus
Pronunciation Help Long sound a ̄in ra ̄te e ̄in re ̄birth ı ̄in ı ̄sle o ̄in o ̄ver u ̄in u ̄nite
Short sound a ̆in a ̆lone e ̆in e ̆ver ̆ıin ı ̆t o ̆in no ̆t u ̆in cu ̆t
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