Is the following statement True or False, and Why?
The presence of a hyperosmotic solution in the duodenum will stimulate gastric emptying.
True; this helps to speed up the absorption process
True; the hyperosmotic solution draws contents in from the stomach
False; this causes an increased relaxation of the pyloric sphincter
False; moving more chyme into the small intestine would further increase osmolarity, drawing a lot of fluid into the duodenum and causing problems
To determine whether the statement is true or false, we need to understand the relationship between a hyperosmotic solution in the duodenum and gastric emptying.
When a hyperosmotic solution (i.e., a solution with a higher concentration of solutes compared to the surrounding fluid) is present in the duodenum, it can affect gastric emptying.
One way the hyperosmotic solution can influence gastric emptying is by drawing contents in from the stomach. This can be true because when a hyperosmotic solution is introduced in the duodenum, the concentration gradient between the stomach and duodenum changes. As a result, the higher osmotic pressure in the duodenum can cause fluids and chyme from the stomach to move towards the duodenum more rapidly, thus stimulating gastric emptying.
Additionally, this process helps to speed up the absorption process. As the chyme is moved from the stomach to the duodenum more quickly, it allows for faster absorption of nutrients and other substances by the small intestine.
Therefore, the correct answer is: True; the presence of a hyperosmotic solution in the duodenum will stimulate gastric emptying by drawing contents from the stomach and accelerating the absorption process.