Which layer of the digestive tract is in direct contact with ingested food?
A. Mucosa
B. Submucosa
C. Muscularis
D. Serosa
Answer: A
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Which of the following statements is true? a. The lower the resistance the lower the current flow between two regions of anaxon
b. The lower the resistance the greater the current flow between two regions of anaxon. c. Capacitance is a measurement of current flow along an axon. d. Neurons that rely on electronic flow of current for communication purposes arenoted for their low membrane resistance. e. None of these statements are true.
Which muscle responds to increased parasympathetic stimulation?
A dilator pupillae B. Sphincter pupillae C. Ciliary body D. Levator palpebrae superioris
There are five ________ vertebrae, seven ________ vertebrae, and twelve ________ vertebrae.
A. cervical; thoracic; lumbar B. lumbar; thoracic; cervical C. cervical; lumbar; thoracic D. lumbar; cervical; thoracic