Most of the blood vessels and nerves in the digestive tract are located in the layer of:
A) submucosa.
B) serosa.
C) mucosa.
D) muscularis externa.
Ans: A) submucosa.
Biology & Microbiology
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Indicate whether the statement is true or false.
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Jean-Luc Eiselé and his coworkers used ______ receptors in their research on neurotransmitter
receptor function.
a. African clawed frog b. toad c. artificial d. dog e. human
Biology & Microbiology
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a. Simple diffusion b. Facilitated diffusion c. Ion channel d. Secondary active transport
Biology & Microbiology