Which of the following is the unit in a myofibril from Z disk to Z disk?
A) sarcomere
B) sarcolemma
C) somatic motor fibers
D) thick and thin filaments uniting
Ans: A) sarcomere
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Match each of the terms with its definition or description.
a. intracellular fluid b. interstitial fluid c. plasma d. ADH e. ANH f. electrolyte g. capillary blood pressure h. plasma proteins i. dehydration j. overhydration k. anions l. aldosterone m. extracellular fluid n. edema o. fluid compartments p. cations 1. _____ Dissociates into ions in a water solution 2. _____ Fluid that is in spaces between the cells 3. _____ A hormone that is made in the pituitary gland and increases water absorption in the kidney 4. _____ Can be the result of prolonged vomiting or diarrhea 5. _____ A hormone that is made in the heart and can increase the amount of water lost in the urine 6. _____ Liquid fraction of whole blood 7. _____ Main water-pushing force moving fluid out of the capillaries 8. _____ Can result if intravenous fluid is administered too rapidly 9. _____ Fluid inside the cells 10. _____ Water-pulling force pulling water back into the capillaries 11. _____ Consists of plasma and interstitial fluid 12. _____ The two examples of these are extracellular and intracellular 13. _____ Term given to negatively changed ions 14. _____ Term given to positively charged ions 15. _____ Tissue swelling as a result of too much interstitial fluid 16. _____ Hormone secreted by the adrenal cortex that increases sodium reabsorption from the kidneys
Which of the following does not participate in control of skeletal muscle activity?
a. limbic system. b. cerebellum. c. supplementary motor area. d. premotor cortex. e. posterior parietal cortex.
Stenosis (constriction) of the hepatopancreatic ampulla would interfere with
A. peristalsis. B. the transport of bile and pancreatic juice. C. the secretion of mucus. D. the passage of chyme into the small intestine. E. salivary gland secretion.
Which of the following is a step within the common pathway of blood clotting?
A. Factor III combines with factor VII. B. Factor XII converts inactive factor XI to active factor XI. C. Prothrombin is activated to thrombin. D. Calcium combines with factor IX.