This bone articulates with the acetabulum
A) humerus B) fibula C) tibia D) femur
Answer: D
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Mastication is one component of the mechanical digestion of food
Indicate whether this statement is true or false.
All but one of the following is a function of the low pH found in the stomach. Select the description below that does not reflect a role of stomach acid
A) The stomach's acid catabolically breaks down food stuffs in preparation for absorption. B) Stomach acid denatures proteins making the poly peptide chain more accessible to pepsin digestive enzymes. C) Many potentially harmful bacteria will be prevented entry to the small intestine by stomach acid. D) Low pH converts pepsinogen to its active form of pepsin, preventing the protease enzyme from digesting the cells that produce it.
Urea
a. reabsorption occurs passively in the distal tubules b. is only 50% reabsorbed in the proximal tubule. c. is not normally found in the urine because it is completely reabsorbed d. reabsorption is controlled by aldosterone e. has a clearance value of 0
Endothelin causes ________.
A. no effect B. vasodilation C. vasoconstriction