| Question |
Answer |
| what layer separates the epithelium from the underlying connective tissue? |
basement membrane (basal lamina) |
| basal lamina and connective tissue form what? |
basement membrane |
| basement membrane functions? |
attachment, filtration, tissue compartmentalization, and confers cell polarity and shape |
| is basement membrane vascular? |
no |
| stratified cells differ from simple cells how? |
the stratified cells have multiple cells not attached to the basement membrane |
| simple squamous that lines the vascular system is called what? |
endothelium |
| simple squamous that lines the body cavities is called what? |
mesothelium |
| what type of simple squamous lines respiratory spaces? |
pneumocytes |
| where are simple cuboidal cells located? |
small ducts of exocrine glands and kidney tubules |
| where are simple columnar cells located? |
small intestine and colon, gallbladder, stomach and gastric glands |
| pseudostratified ciliated columnar epithelium cells all attach where? |
basement membrane |
| pseudostratified ciliated columnar epithelium cells located where? always have what feature? |
trachea and bronchi lining, lining of vas deferens, epididymis; always have cilia |
| stratified cuboidal/stratified columnar are found where? |
mammary, sweat glands, anorectal junction, and large ducts of exocrine glands |
| stratified squamous is found where? |
epidermis, lining of oral cavity/esophagus, lining of vagina (can be keratinized or non-keratinized) |
| transitional cells found where? |
renal calyces, bladder, urethra, ureter |
| endocrine glands have ducts or not? |
no |
| unicellular glands are composed of a single cell; give an example: |
goblet cells in tracheal epithelium |
| multicellular glands have what 2 portions? |
duct and secretory portions |
| goblet cells secrete what? |
mucus |
| serous secretions consist of what? example? |
watery secretions rich in enzymes; parotid |
| mixed secretions make what two things? example? |
mucus and serous; submandibular gland |
| serous glands stain what color? |
pink |
| mucus glands stain what color? |
clear |
| cells that release their contents by exocytosis? example? |
merocrine; parotid gland |
| part of the secretory cell apical cytoplasm is released along with the contents? example? |
apocrine; mammary gland |
| entire secretory cell and contents released? example? |
holocrine; sebaceous gland |
| benign epithelial neoplasms are called what? |
adenomas |
| malignant epithelial neoplasms that arise from any sheet-like or glandular epithelia? |
carcinoma |
| malignant epithelial neoplasms that arise from glandular tissue? |
adenocarcinoma |
| what are the primary functions of epithelium? |
diffusion, transport, absorption, secretion |
| what kind of tissue lines the bowman's capsule |
simple squamous |
| transformation of one cell type to another: |
metaplasia |
| is metaplasia reversible? |
yes |
| an abnormality in the appearance of cells indicative of an early step towardstransformation into a neoplasia: |
dysplasia |
| benign epithelial neoplasm that arises from surface epithelia? |
polyp |
Science Vocab 147928
