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