What is pulmonary surfactant produced by?
A. Goblet cells
B. Type I alveolar cells
C. Type II alveolar cells
D. S cells
E. Alveolar macrophages
Answer: C
Anatomy & Physiology
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Which center bears the primary responsibility for generating the respiratory rhythm, but is influenced by several other centers?
A. SRG B. PRG C. VRG D. DRG
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As a person ages, the skin typically becomes
A) more opaque. B) spotted with patches of pigment. C) more elastic. D) thicker.
Anatomy & Physiology
Which is a change in bone architecture or mass related to aging?
A. Insufficient calcification B. Reduction in the organic content of the matrix C. Loss of flexibility and increase in brittleness D. Demineralization E. All of the choices are correct.
Anatomy & Physiology
Macrophages develop from
A) neutrophils. B) lymphocytes. C) thrombocytes. D) eosinophils. E) monocytes.
Anatomy & Physiology