31) Which of the following is
not
a function of the nasal conchae?
A) They deflect particulates to the mucosa.
B) They help warm the air.
C) They decrease the turbulence in the flow of air through the nasal cavity.
D) They moisten the air.
32) When the diaphragm contracts, the size of the thoracic cavity ________, the pressure inside the thoracic cavity ________, and air flows ________ the lungs.
A) decreases; rises; into
B) increases; drops; into
C) decreases; drops; out of
D) increases; drops; out of
33) In lung cancer, the cancer cells usually arise from
A) the smooth muscle fibers around the bronchioles.
B) the epithelium lining a large bronchus.
C) the alveoli.
D) lymph nodes in the lung.
34) Vibrissae are
A) specialized cells in the larynx that react to vibrations of air.
B) large hairlike projections on epithelial cells that line the trachea.
C) nose hairs.
D) the sensory organs of the inner ear.
35) Which muscle contracts during forced expiration?
A) internal oblique
B) serratus anterior
C) sternocleidomastoid
D) pectoralis major
36) The part of the brain that generates the basic respiratory rhythm is the
A) medulla oblongata.
B) limbic system.
C) hypothalamus.
D) cerebrum.
37) Sympathetic stimulation of terminal bronchioles causes
A) bronchoconstriction.
B) a decrease in blood supply to the bronchioles.
C) bronchodilation.
D) secretion of less surfactant.
38) The left lung
A) has three lobes.
B) is supplied entirely by a secondary bronchus.
C) receives oxygenated blood from the heart via the left pulmonary artery.
D) has a cardiac notch.
39) Which portion of the nasal cavity is lined with sebaceous and sweat glands and numerous hair follicles?
A) hard and soft palate
B) nasal conchae
C) roof (ceiling)
D) vestibule
40) The detergent-like molecule that keeps the alveoli from collapsing between breaths is called
A) bile.
B) hemoglobin.
C) surfactant.
D) oxygen.