Villi
A. are found throughout the gastrointestinal tract.
B. generate movement of materials in the large intestine.
C. increase surface area in the small intestine.
D. contain both smooth and skeletal muscle fibers.
E. All of the choices are correct.
C
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Lipophilic hormones must interact with __________ prior to gene activation
a. membrane receptors b. G-proteins c. intracellular receptors d. adenylate cyclase e. both b and d
Receptors
a. generate action potentials in afferent fibers in response to stimuli. b. change other forms of energy into electrical energy. c. are located in the dorsal root ganglion. d. both (a) and (b) above. e. all of these answers.
A patient with no sensation in the left thumb would most likely have nerve damage of the ________ spinal nerve.
A. T5 B. L3 C. T1 D. C6 E. C5
The senses of taste and hearing both utilize receptor cells that are categorized as ________.
A. primary receptors B. mechanoreceptors C. secondary receptors D. chemoreceptors