1. Contraction technically refers to A. shortening of fibers B. thickening of fibers C. tension along fibers 2. Surfactants are A. oily fluids that coat the lungs B. transport proteins that act on the lung surface C. cilia that push particles across the lung surface 3. Insulin is produced by the A. pancreas B. microvilli C. gall bladder D. liver 4. Antidiuretic hormone A. helps H2O secretion B. helps H2O recovery C. expands the ureter D. contracts the ureter 5. Blood is filtered in kidneys by A. exiting capillaries B. exiting the lymphatic system C. draining from interstitial fluid D. from the small intestine 6. The Major Histocompatibility Complex A. defines blood type B. regulates gene expression C. controls immune cell generation D. defines self and not self 7. The strategy used by kidneys is to A. secrete a percentage of all small molecules B. let all small molecules diffuse out and return everything but urine C. collect urine from blood via receptors 8. The digestive tract can be considered to be A. interstitial fluid B. technically outside the body C. part of the circulatory system 9. Gas exchange in the lungs is by _________ transport A. active B. passive C. actin-based 10. Striated muscle refers to being A. situated at right angles to joints B. packed with contractile proteins C. establishing sheet-like arrays 11. Since gills of a fish are in contact with water, they are subject to A. waves B. pH imbalance C. algae 12. Muscle spindles A. help muscle fibers coil B. pull bonds across joints C. sense contraction levels 13. Memory cells are set aside by A. the innate system B. the adaptive immune system C. both the innate and adaptive immune system
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