1)
Which of the following statements is true regarding fluidshifts?
| A. | Nonelectrolytes are the controlling factor in directing fluidshifts |
| B. | There are always more positive electrolytes than negative in asolution; it is therefore impossible to follow fluid shifts |
| C. | Electrolytes are not as important as proteins in regulatingfluid shifts in the body |
| D. | Electrolytes have greater osmotic power than nonelectrolytes andtherefore have the greatest ability to cause fluid shifts |
| E. | None of the answers listed are correct |
2)
Regarding the stomach, which of the following statements isINCORRECT?
| A. | located in the left upper abdominal quadrant |
| B. | HCl is produced by surface and neck cells |
| C. | rugae are mucosal folds |
| D. | cardiac sphincter is distal to the esophagus |
| E. | pylorus is proximal to the duodenum |
3)
All but one of the following statements is true with regard tothe blood testis barrier. Select the one statement that isFALSE.
| A. | The barrier prevents the spermatocytes from exposing theirunique antigens to the immune system. |
| B. | The barrier is made up of astrocytes that surround blood vesselsin the testis. |
| C. | The barrier is needed because sperm develop after the immunesystem learns how to recognize \"self\" |
| D. | The cells that form the blood testis barrier are joined by tightjunctions. |
| E. | All the answers listed are correct |
