Which system is a functional system, not an organ system in the anatomical sense, that consists of innate and adaptive defense mechanisms?
A) respiratory system
B) lymphatic system
C) endocrine system
D) immune system
E) cardiovascular system
D
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Which of the following is the best illustration of the difference between metabolism and digestion?
A) Digestion has a wide variety of chemical reactions while metabolism is restricted to only a few reaction types. B) Digestions must happen first for metabolism to follow it. C) Metabolism comprises all of the chemical reactions preformed with in the body while digestion is only the breakdown of food within the G.I. Tract. D) Digestion requires enzymes for it to take place while metabolism does not necessarily need or use them.
RU-486, taken in conjunction with a prostaglandin, induces uterine contractions.
a. true b. false
To produce horizontal wrinkles in the forehead, which of the following muscles is involved?
A) the medial pterygoid B) the zygomaticus major C) the frontal belly of the epicranius D) the temporalis
In what form does thrombin normally exist in the plasma?
a. fibrinogen b. protothrombin c. prothrombin d. prethrombin e. thrombin stabilizing factor