Which of the following diseases is characterized by loss of alveolar surface area __________.
a) chronic bronchitis
b) asthma
c) emphysema
d) pulmonary embolism
Ans: c) emphysema
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The sequence of events in the transmission of an impulse through the heart muscle is a: AV nodeb: AV bundlec: SA noded: through the atriae: through the ventriclesf: bundle branchesg: Purkinje fibers
A. b, a, d, c, f, g, e B. d, b, a, c, f, g, e C. c, d, a, b, f, g, e D. f, g, d, c, b, a, e E. c, d, a, f, b, g, e
If the phrenic nerve were cut, what would be a result?
A. Inability to flex the arm B. Inability to extend the arm C. Paralysis of the anterior neck muscles D. Problems with breathing E. Inability to flex the neck
List the spinal flexor muscles
A) splenius capitis and splenius cervicis B) spinalis cervicis and spinalis thoracis C) iliocostalis cervicis, iliocostalis thoracis, iliocostalis lumborum D) longus capitis, longus colli, quadratus lumborum E) semispinalis capitis, semispinalis cervicis, semispinalis thoracis, multifidus
Which of the following is a special characteristic of the respiratory membrane structure that facilitates gas diffusion?
A. the merging of the basement membranes of the alveoli and capillary B. the presence of alveolar pores C. the presence of surfactant D. the presence of type I and type II alveolar cells