Stimulation of the reticular formation results in
A) increased consciousness.
B) sleep.
C) coma.
D) decreased cerebral function.
E) All of the above.
Answer: A
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The gate control theory of pain says that pain impulses traveling through the lateral spinothalamic tract can be suppressed by increased activity of the
A. anterior spinothalamic tract. B. spinocerebellar tracts. C. tertiary neurons. D. extrapyramidal tracts. E. dorsal column/medial lemniscal system.
Most cells generate ATP and other high-energy compounds by breaking down carbohydrates, especially
A) ribose. B) galactose. C) sucrose. D) fructose. E) glucose.
In phenylketonuria, an individual cannot break down the amino acid phenylalanine
Molecules that include phenylalanine build up in the blood, which causes intellectual disability and other symptoms. This inherited disease can be controlled by following a diet that is very low in A) protein. B) carbohydrates. C) nucleic acids. D) cholesterol.
The peritubular capillaries
a. supply nutrients and O2 to the tubular cells. b. take up the substances that are reabsorbed by the tubules. c. supply substances that are secreted by the tubules. d. all of these answers. e. none of these answers.