ANA300Y1 Lecture Notes - Lecture 4: Stratified Squamous Epithelium, Simple Columnar Epithelium, Simple Squamous Epithelium
Document Summary
Shape of cells at the exposed surface? (apical surface (exposed surface)) squamous: flat (ex: simple squamous epithelium, or stratified squamous epithelium) cuboidal: height=width. Stratified epithelium, it"s the cells of exposed surface, whose shape counts if cells of exposed surface are cuboidal, then it would be simple/stratified cuboidal epithelium. 2 parts form the name of the epithelium. Surface specializations (add it to the name) microvilli cilia goblet cells. If covered in microvilli, simple columnar epithelium with microvilli. Simple columnar epithelium with cilia, simple columnar epithelium with goblet cells. Can have more than one surface specialization, then name them all ex: ciliated epithelium with goblet cells. A. simple squamous epithelia: line surfaces involved in rapid passive transport, e. g. alveoli, endothelium (lining blood vessels), mesothelium (epithelium lining body cavity that don"t open to exterior) thinnest of the epithelia, flat found at capillary beds. Simple squamous epithelium: endothelium crescents are all red blood cells carrying gases.
