Which of the following cell types is correctly matched with its function?
A. endocrine cells - produce mucus
B. absorptive cells - produce digestive enzymes
C. granular cells - absorb nutrients
D. goblet cells - produce hormones
E. granular cells - produce granules
B
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The ventral spinocerebellar pathway in the spinal cord involves ascending tracts, while the ventral corticospinal pathway involves descending tracts
Indicate whether the statement is true or false
Sickle cell anemia generally results from a single (1) amino acid incorrectly inserted in the 146 amino acid chain that ultimately forms the beta chain of the hemoglobin protein.
a. true b. false
Which of the following factors would not be associated with an increase in blood pressure?
A) increased heart rate B) increased stroke volume C) increased blood viscosity (as in polycythemia) D) increased total vessel length (as in obesity) E) decreased vasodilation F) all of the above G) none of the above
A 56-year-old woman has worked in a photography shop developing film for the past 20 years. She has a long history of shortness of breath and chronic cough, which have progressively become worse
Her FEV1 and FVC values were reduced but her FEV1/FVC ratio was within the normal range. Her diffusion capacity as measured by DLCO was low at 15 mL/min/mm Hg. A bronchoalveolar lavage and tissue biopsy were performed. The lavage sample revealed high numbers of macrophages but of abnormal appearance and high numbers of dead macrophages. What type of pathology would you expect to find? A. peribronchial inflammation with eosinophils B. granulomatous-like lesion in the terminal bronchioles with interstitial fibrosis and large foamy macrophages C. interstitial edema fluid accumulation with neutrophil infiltrate D. emphysematous lesion with large alveoli and minimum interstitial fibrosis