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 stomach epithelium is simple columnar. This portion of the stomach is from the Cardiac region and is mostly made up of surface mucous cells. Thus, the epithelium is largely protective. The next slide you will examine is the FUNDIC region or BODY. This part of the stomach contains specialized cells for digestion.