Scorpions in Arizona About 40-60 species occur in Arizona, although many are undescribed. The bark scorpion (Centruroides sculpturatus) is the only species in Arizona of medical importance.In the U.S. the bark scorpion is found in southeastern California, Arizona, Nevada, southern Utah, and southwestern New Mexico.
Epithelium (epi- + thele + -ium) is one of the four basic types of animal tissue. The other three types are connective tissue, muscle tissue and nervous tissue. Epithelial tissues line the cavities and surfaces of blood vessels and organs throughout the body.There are three principal shapes of epithelial cells: squamous, columnar, and cuboidal.he other three types are connective tissue, muscle tissue and nervous tissue. Epithelial tissues line the cavities and surfaces of blood vessels and organs throughout the body. There are three principal shapes of epithelial cells: squamous, columnar, and cuboidal.
Beneath the gastric pits, the mucosa of the stomach is filled with closely packed tubular glands, which differ by region (i.e., cardiac, fundic, pyloric). Histologically, most of the stomach wall contains gastric glands (or fundic glands).These consist primarily of parietal cells and chief cells.mages. The surface is indented into numerous short gastric pits which open freely to the lumen. The entire surface consists uniformly of surface mucous cells, which protect the stomach from self-digestion. Failure of the surface mucous cells to protect the stomach wall can lead to an ulcer.