Which of the following answer choices correctly organizes the airways of the bronchial tree (large airways to small airways)?
A) alveoli > alveolar sac > alveolar duct > respiratory bronchiole > terminal bronchiole > bronchioles > small bronchi > tertiary bronchi > secondary bronchi > primary bronchus
B) primary bronchus > secondary bronchus > tertiary bronchus > small bronchi > bronchioles > terminal bronchioles > respiratory bronchiole > alveolar duct > alveolar sac > alveoli
C) alveoli > secondary bronchus > tertiary bronchus > small bronchi > bronchioles > terminal bronchioles > respiratory bronchiole > alveolar duct > alveolar sac > primary bronchus
D) tertiary bronchus > primary bronchus > secondary bronchus > small bronchi > terminal bronchioles > bronchioles > respiratory bronchiole > alveolar duct > alveolar sac > alveoli
B
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Repair enzymes correct
A. the degeneration of collagen and elastin. B. lipofuscin build-up. C. free radical build-up. D. mutations that occur when DNA replicates.
The relative concentration of potassium is
A) higher in plasma and glomerular filtrate than in urine. B) lower in urine than in plasma or glomerular filtrate. C) about equal in plasma, glomerular filtrate, and urine. D) higher in urine than in plasma or glomerular filtrate.
The hormone produced by the pars intermedia of the adenohypophysis during early childhood is
A) FSH. B) ADH. C) TSH. D) MSH. E) ACTH.
Antigen-presenting cells are necessary for ________ response to a foreign antigen.
A. antibody B. macrophage C. B lymphocyte D. T lymphocyte