What is the general purpose of positive feedback mechanisms?

A. to maintain a constant internal environment
B. to anticipate changes in the environment
C. to return a variable toward the set point
D. to bring about a rapid change in the body
E. to detect changes in the external environment


D

Anatomy & Physiology

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Tom has hepatitis, an inflammation of the liver. Which of the following symptoms would you expect to observe in Tom?

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Which is not considered part of the hindbrain?

A. Pons B. Quadrigeminal plate C. Cerebellum D. Medulla oblongata E. All of the above

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Glucagon is synthesized by the ________ cells of the pancreas.

Fill in the blank(s) with the appropriate word(s).

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Which of the following is a paired structure?

a. cerebral (mesencephalic) aqueduct b. median aperture c. central canal of spinal cord d. lateral aperture

Anatomy & Physiology