click below
click below
Normal Size Small Size show me how
Tissue Types
Anatomy
| Question | Answer |
|---|---|
| Groups of cells with similar structure and function | Tissue |
| epithelial tissue location | body coverings body linings glandular tissue |
| glandular tissue | forms various glands in the body for secretion of sweat, oil, digestive, mucus |
| epithelial tissue function | protection absorption filtration secretion |
| epithelial tissue hallmark | cover and line body surfaces often form sheets with one free surface, the apical surface, and an anchored surface, the basement membrane avascular regenerate easily if well nourished |
| avascular | no blood supply rely on diffusion from the capillaries in the underlying connective tissue for food and oxygen |
| apical surface | exposed to the body's exterior or to the cavity of an internal organ exposed surfaces of some epithelial are slick and smooth but others have cilia or micro cilia |
| anchored surface | rest on basement membrane |
| basement membrane | a structurless material secreted by both the epithelial cells and the connective tissue cells deep to the epithelium the "glue" |
| classification | # of cell layers shapes of cells |
| simple epithelium | one layer of cells |
| stratified epithelium | more than one cell layer |
| squamous cells | scale ; flattened |
| cubical cells | cube shaped |
| columnar cells | column shaped |
| simple epithelial are most concerned w/ ..... | absorption, secretion, and filtration very thin so protection is not one of their specialties |
| simple squamous | single layer of thin squamous cells resting on a basement membrane fit closely together usually forms membranes where filtration or exchange of substances occur |
| simple squamous is located... | in the air sacs of the lungs, capillaries, serous membranes |
| serous membranes | slick membranes that line the ventral body cavity and cover the organs in that cavity |