You start with 12 grams of C (carbon) and 32 grams of O (oxygen). Predict the mass of the final product, CO2 (carbon dioxide) below.
C+02 ---> CO2
20 grams
12 grams
44 grams
O 32 grams

between the two muscle layers is the myenteric or auerbach's plexus, which controls peristalsis. in the colon, the muscularis externa is much thicker because the feces are large and heavy, requiring more force to push along. the stomach has a third layer of muscularis externa: the inner oblique layer.

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a licensed practical nurse (lpn), in much of the united states and canada, is a nurse who cares for people who are sick, injured, convalescent, or disabled. in the united states, lpns work under the direction of physicians.

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