After age 60, what percentage of fractures are osteoporosis related?
A. 10%
B. 30%
C. 60%
D. 90%
D. 90%
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The molecule shown in the figure is considered to be the most important metabolic "fuel" in the body. Choose the best category of molecules to which it belongs.
A) steroid B) saturated fatty acid C) monoglyceride D) cholesterol E) monosaccharide
Answer the following statements true (T) or false (F)
1. High levels of HDLs are considered good. 2. Diets high in cholesterol and saturated fats tend to produce high HDL concentrations. 3. Ghrelin, produced by the stomach, is a powerful appetite stimulant. 4. Peptides called NPY and AgRP are powerful appetite enhancers. 5. The primary function of carbohydrates is energy production within cells.
At the splenic flexure, the colon becomes the:
A) descending colon. B) ascending colon. C) sigmoid colon. D) transverse colon.
Immunocytochemistry for vasoactive intestinal polypeptide (VIP) can be used to identify which type of cell of the digestive system?
a. Enterocyte b. Enteroendocrine cell c. Goblet cell d. Paneth cell e. Parietal cell