Tissue Vocab (1-25)
Order by
25 terms
Terms | Definitions |
|---|---|
 epithelial tissue | membranous tissue covering internal organs and other internal surfaces of the body |
| epithelium | cells covering external and internal surfaces of the body |
| polarity | having an indicated pole (as the distinction between positive and negative electric charges) |
| avascular | without blood vessels |
| glandular epithelium | composed of cells that are specialized to produce and secrete substances into ducts or into body fluids |
| exocrine | denoting a gland that secretes outwardly through ducts |
| endocrine | made up of glands that produce and release chemicals into the bloodstream in order to maintain homeostasis |
| stereocilia | nonmotile cilia, in hair cells, bend in response to the transmission of sound waves |
| ciliated epithelium | this tissue is found in the uterine tube |
| cell adhesion molecules | proteins that guide cellular movement within the body |
| intercellular cement | a thin layer of proteoglycans that contain polysaccharide derivatives know as glycosaminoglycans |
| cell junctions (all three) | Tight junctions seal adjacent epithelial cells in a narrow band just beneath their apical surface. Adherens junctions provide strong mechanical attachments between adjacent cells. Gap junctions are intercellular channels some 1.5-2 nm in diameter. These permit the free passage between the cells of ions and small molecules (up to a molecular weight of about 1000 daltons). |
| basal lamina | supporting layer of connective tissue under the epithelium |
| reticular lamina | A layer of extracellular material containing a fine network of collagen protein fibers |
| germinative cells | stem cells located near the basal lamina responsible for maintaining epithilial structure |
| simple epithelium | A single layer of thin, flat cells. It is often found where diffusion or filtration take place (alveoli in lungs, kidneys). It also covers organs in the pericardial, pleural, and peritoneal cavities. |
| stratified epithelium | thick membrane with several cell layers, surface cells can contain keratin. protects underlying tissues in areas that can be rubbed or injured |
| squamous epithelium | Flat, scale-like cells composing the epidermis |
| simple squamous epithelium | contains a single layer of flat cells; found in the body where filtration (kidney) or diffusion (lungs) are priority processes |
| mesothelium | epithelium originating in the embryonic mesoderm |
| endothelium | an epithelium of mesoblastic origin |
| stratified squamous epithelium | thick membrane with several cell layers, surface cells can contain keratin. protects underlying tissues in areas that can be rubbed or injured |
| cubodial epithelium | Square cells with nucllei that are round and situated in the middle of the cell |
| simple cubodial epithelium | single layer of cubelike cells with large, spherical central nuclei. location -kidney tubules, ducts.. |
| stratified cubodial epithelium | multilayered cube shaped epithelial, not commonly found in the human body, found in large ducts of major salivary glands |
First Time Here?
Welcome to Quizlet, a fun, free place to study. Try these flashcards, find others to study, or make your own.