Digestive system exercises with templates

I separated a content for students with digestive system exercises with feedback about the anatomy of the digestive tract, judge the subsequent items. This can serve as a test to test basic knowledge too!

Check the correct alternatives:

1) In gastroesophageal reflux, both the upper and middle portions of the esophagus and the lower esophageal sphincter are contracted.

2) In a child with 20-day chronic diarrhea, anatomical changes in the small intestine may occur, such as loss of villi and microvilli.

3) Cardia, megacolon, antrum and ileocecal sphincter are parts of the human stomach.

4) The exchange of a single amino acid in a protein can cause DNA mutation, as occurs in sickle cell anemia.

The figure below shows the human digestive tract.

With respect to this apparatus, mark the correct proposition(s).

5) Structure A indicates a region common to the digestive and respiratory systems.

6) Food and liquids that enter the mouth are taken to the stomach by structure B by gravity.

7) In the oral cavity, enzymes (example: ptyalin) act on starch, transforming it into maltose and dextrins.

8) The organ indicated in D produces some substances that are released directly into the duodenum and others that are released directly into the bloodstream.

9) Individuals with the disease known as yellowing or hookworm disease have in C the typical fixation site of the parasite Ancylostoma braziliensis.

10) In the walls of the small intestine we have the presence of villi and, in these, the epithelial cells present with microvilli to increase the absorption area.

11) When there is an excess of glucose in the blood, it is converted into starch in the place indicated by D.

The correct answers are:

2, 4, 5, 7, 8, 10