FINAL SAMPLE - FINAL SAMPLE Page 1 of 35 FINAL SAMPLE...

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FINAL SAMPLE Student: ____________________________________________________________________________________ 1. If the sinoatrial node fails in the heart ________. A. the heart ceases to beat B. the ventricles will beat at a higher rate C. an artificial pacemaker can correct the problem D. it does not affect the heartbeat 2. In diabetes type 2, typically occurring in inactive, obese individuals, ________. 3. Schwann cells enclose nerve fibers, providing them with support and nourishment and so are a type of ________. A. intercalated disk B. neuroglia C. neuron D. dendrite 4. Fig. 24.1 represents urine formation. What specific process is occurring at #2? A. secretion B. filtration C. reabsorption D. excretion 5. Food in the digestive tract is called chyme after ________. Page 1 of 35 FINAL SAMPLE 3/4/2008
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6. The osmotic pressure and buffering capacity of the blood is maintained by the ________. 7. The part of the adrenal which reacts to emergency situations is the ________. A. adrenal cortex releasing glucocorticoids B. adrenal medulla releasing epinephrine and norepinephrine C. adrenal cortex releasing acetylcholine D. adrenal medulla releasing adrenocorticotropic hormone 8. Columnar cells with small projections called microvilli which line the intestine are a type of ________. 9. Fig. 23.1 represents a four chambered heart. Part Z represents ________. A. the pulmonary trunk B. the septum Page 2 of 35 FINAL SAMPLE 3/4/2008
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True False True False C. the left atrium D. the right ventricle 10. Homeostasis maintains various levels within a narrow range only if environmental conditions do not fluctuate much. 11. Collagen fibers and elastic fibers are produced by ________. 12. Starch digestion begins in the ___ and protein digestion begins in the ___. 13. Each red blood cell contains about 250 million hemoglobin molecules and so can carry at least one billion molecules of oxygen. 14. Negative feedback control of sex hormones can be found at two levels: ________. A. the cerebrum signaling the hypothalamus as well as the anterior pituitary secreting gonadotropic hormone B. the hypothalamus secreting the releasing hormone as well as the anterior pituitary secreting gonadotropic hormone C. the thalamus secreting releasing hormone as well as the anterior pituitary secreting growth hormone D. the anterior pituitary secreting gonadotropic hormone as well as the adrenal cortex secreting releasing hormone.
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