The transverse colon is part of the upper gastrointestinal tract.
Answer the following statement true (T) or false (F)
False
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Which of the following statements regarding neural regulation of gastrointestinal function is TRUE?
A. Networks of neurons in the wall of the GI tract innervate the wall's smooth muscle. B. Smooth muscle of the GI tract is innervated by both sympathetic and somatic motor nerves. C. If the autonomic nerves to the GI tract were cut, digestion and absorption of food could no longer take place. D. The nerve plexus of the GI tract exists in a single layer, just outside of the serosa. E. There are no afferent neuronal pathways from the GI tract to the central nervous system.
A wooded area is converted to a housing development and strip mall. Predict and briefly describe three ways this change in land use could affect atmospheric carbon dioxide levels
What will be an ideal response?
A membrane transport process is found experimentally to lack a saturation limit. Which of the following is a possible property of the process?
A) energy-dependent B) carrier-mediated C) secondary active transport D) active transport E) diffusion
When a muscle fiber is subjected to a stimulus, it contracts completely. This is called:
a. threshold stimulus b. the all-or-none-law c. twitch contraction d. tetanic contraction