The efferent neuron that innervates a muscle spindle's intrafusal fibers is known as a(n) ____________________ motor neuron
Fill in the blank(s) with correct word
gamma
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Which of the following statements is true of the Magnus force?
A. It is created by spin on a ball. B. It is created by a pressure differential. C. Both A and B are true. D. Neither A nor B is true.
The hormone secretin is released by endocrine cells in the duodenal mucosa in response to
a. distention of the stomach b. carbohydrate in the duodenum c. acid in the duodenum d. gastrin secreted by the pyloric gland area of the stomach e. none of the above
A scientist genetically engineers a mouse to lack the hormone secretin. Compared with a normal animal, which of the following would be expected to be increased in the mutant mouse?
A. pH of pancreatic ductular secretion B. volume of pancreatic secretion C. pH of duodenal contents D. susceptibility to duodenal erosions and ulcerations E. gallbladder contractibility
The diagram illustrates sensory receptors in the skin. What structure does "C" represent?
A. Free nerve endings B. Meissner corpuscles C. Merkel disks D. Pacinian corpuscle E. Ruffini end organ