Epithelium

1. Simple squamous: endothelial layer of blood vessels, glomerulus of kidney,
2. Simple columnar: small intestine; brush border, microvilli, goblet mucus cells
3. Simple cuboidal: proximal tubule, microvilli, collecting duct of kidney
4. Pseudostratified columnar: respiratory system, all on basement membrane, basal cells = stem cells, goblet mucus cells, ciliated columnar absorptive epithelial cells, true cilia
5. Stratified squamous: skin, basal layer, light color melanocyte, Langerhans cells (immune)
6. Stratified cuboidal: salivary gland duct, sweat gland duct 
7. Transitional epithelia: bladder

• Parotid gland: pure serous cells
• Submendibular gland and sublingual gland: mix of serous cells (dark color) and mucus cells (light color)