IMG_4572

45 of 135 e RE T e Page 44 Chapter 4: Histology, Continued Specific Type of ET # Cell Layers Characteristics Function Location Simple Squamous Squamous cells filtration, endothelium, lung regenerate rapidly by diffusion, alveoli, serous division of the cells at its | secretion, membranes, attached surface—true for | reduces capillaries, kidney both simple and stratified! | friction and | glomeruli abrasion Stratified Squamous Keratinized protection | epidermis, lining of (waterproofing protein, from the mouth, keratin) stratified abrasion, esophagus, vagina, s e = squamous = areas such as | pathogens, | anal canal s o< T the skin or chemical P A S SO . attack < : o2 : DOV Nonkeratinized stratified oA S OGO 0SS squamous = esophagus, nose, mouth, anal canal, & vagina Simple cuboida Found frequently in secretion ovary surface, lining ~ % e ) A ] glands (salivary, thyroid, | and of kidney tubules, . \ pancreas) where it absorption | ducts and secretory - o | functions in secretion. portions of glands | Has numerous goblet secretion lining of digestive cells which produce and tract (from stomach mucus. Has modifications | absorption | to rectum), known as villi cells which gallbladder, help to increase surface collecting ducts of area. kidneys, uterine tubes Pseudostratified columnar appears Typically associated with | protection, | lining of nasal \l stratified but is actually simple since each cell touches the ciliated cells secrete and propel mucus cavity, trachea, bronchi, portions of the male reproductive tract returns to its original shape after repeated stretching stretching \\ it \al basement g ) membrane LR Transitional stratified Unusual because it distension, | lining of ureters, urinary bladder, renal pelvis of kidneys