As soon as a person sees a cup of lemon juice, they start to salivate. This is an example of
A. positive feedback.
B. adaptation.
C. negative feedback.
D. feedforward regulation.
E. None of the choices are correct.
Answer: D
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Which of the following membranes line cavities that communicate with the exterior of the body?
A) mucous B) serous C) cutaneous D) synovial E) pleural
Association areas
A. integrate outgoing motor information. B. integrate new sensory inputs with memories of past experiences. C. correlate information from opposite sides of the brain. D. correlate similar functions from the same lobes on the opposite side of the brain. E. correlate similar functions from different lobes on the same side of the brain.
The hepatic portal system allows for the processing of
A. drugs and toxins in the blood so that they are secreted directly into the urine. B. bacteria that grow in the large intestine but need to be regulated. C. nutrients and toxins absorbed from the gastrointestinal system into the blood. D. hormones that are secreted by glands and must be directed to their target organs.
Which of the following is innervated only by the sympathetic division of the ANS?
A) digestive system B) heart C) sweat glands D) esophagus E) lungs