Which of the following statements is not true of the cerebellum?
A) It helps regulate water balance and sleep cycles.
B) It is responsible for sensory and motor coordination and balance.
C) It is considered the "little brain."
D) It lies under the occipital lobe of the cerebrum.
A
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Mechanoreceptors and chemoreceptors are found in the
A. adventitia of the upper portion of the GI tract. B. epithelium of the inferior portion of the GI tract. C. mucosa and submucosa of the GI tract along its length. D. myenteric plexus of the mucosa of the intestine. E. muscularis interna of the entire length of the GI tract.
The exocrine glands are ductless glands that secrete hormone directly into the bloodstream
a. True b. False Indicate whether the statement is true or false
What would be the best explanation for why myelinated fibers conduct signals faster than unmyelinated fibers?
A. There are no internodes in unmyelinated fibers. B. Facilitated diffusion of sodium and potassium is faster in myelinated fibers. C. There are more internodes in unmyelinated fibers. D. Diffusion of ions along the axoplasm is faster. E. Active transport of sodium and potassium is faster in myelinated fibers.
Central chemoreceptors in the medulla oblongata directly detect changes in the pH of the ________.
A. blood B. air C. cerebrospinal fluid D. lymph