Stimulation of Beta 1 adrenergic receptors results in all of the following EXCEPT:
A) Positive inotrophy
B) Positive dromotropy
C) Positive chronotropy
D) Negative automaticity
Answer: D
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Which of the following statements about the gastrointestinal system are TRUE?
A) After nutrient absorption, blood returns directly to the heart for recirculation. B) The duodenum and ileum make up the bulk of the small intestine. C) The blood absorbs nutrients ingested through the gastrointestinal tract. D) Mechanical digestion takes place in the duodenum, jejunum, and ileum.
The stomach doesn't digest itself because:
A. the hydrochloric acid is neutralized by sodium bicarbonate. B. the chyme protects the stomach lining. C. the bolus absorbs all the gastric juices. D. the mucous lining acts as a barrier between the gastric juices and the stomach lining.