Some of the factors that affect the rate at which particles diffuse include: the particle's molecular weight, temperature, concentration difference, diffusion distance, permeability and surface area.
This region of the stomach is called the 'cardiac' region. How does the mucosa in this region change? Gastric Glands in the fundus (body) of the stomach. The epithelium of the mucosa of the fundus and body of the stomach forms invaginations called gastric pits. The lamina propria contains gastric glands, which open into the bases of the gastric pits. These glands are responsible for the synthesis and secretion of the gastric juice.
The body of the stomach is also a distensible section in the âmiddleâ of the stomach. The pyloric antrum is the distal part of the stomach that grinds up swallowed food and regurgitates the hydrochloric acid that is produced by the fundic and body parietal cells.