During an asthma attack, bronchioles become severely _______. Taking epinephrine causes them to _______.
A. constricted; dilate
B. dilated; constrict
C. mucus-filled; empty of mucus
D. both a and c
Answer: A. constricted; dilate
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During muscular contractions associated with inhalation, what would happen if intrapleural pressure were to be less than intrapulmonary pressure?
A. Lung volume would remain unchanged B. Thoracic volume decrease with lung collapse C. Thoracic volume increase with lung inflation D. Thoracic volume increase with lung collapse
Nerves and blood vessels that service a muscle fiber are located in the connective tissues of its
What will be an ideal response?
An electrolyte is a substance that releases ________ when dissolved in water.
A. electrons B. ions C. bases
Vibrations of what structure create waves within the perilymph of the cochlear tube?
A. Auditory canal B. Tympanic membrane C. Oval window D. Pinna