3670913
Description
Flashcards by reanna geary, updated more than 1 year ago
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Created by reanna geary
over 8 years ago
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| Question | Answer |
| apical surface | top layer, unattached, exposed. |
| basal surface | bottom, attached |
| basement membrane | nonliving, reinforces and anchors epithelial tissue |
| blood supply for epithelial tissue | avascular |
| how do cells regenerate in epithelial tissue | carry out cell division and produce new cells |
| simple | 1 layer |
| stratified | 2 or more layers |
| pseudostrattified | looks like many layers but is one |
| squamous | flat |
| cuboidal | cube/square |
| columnar | collumn/tall |
| transitional | shape can change |
| simple squamous epitheliam | description: single layer- flat thin cells function : allows substances to pass through easily LOCATION: air sacs of lungs and serous membrane |
| simple cuboidal epithelium | description: single layer of cubelike cells Function: secretion and/or absorption Location: kidney tubules |
| simple columnar epithelium | description: single layer of tall cells function: absorption and secretion location: lining digestive tract, stomach to anus |
| stratified squamous epithelium | description: many layers of cells, top layer(s) is flat. funtion: protects underlying tissues kertanized location: epidermis nonkeratinized location: lining oral cavity, esophagus, and vagina. |
| keratin | structural protein. fills snd hardens cells |
| transitional epithelium | changes shape and stretches description: several layers of cells. tops cells change shape. (round-flat) function: stretches easily- qlloes for organ distention location: lining urinary bladder and organs |
| pseudostrattified columnar epithelium | description: lookd like several layers but is only one. function: secretion of mucus and cillia action location : lining trachea |
| gland | one or more cells that make and secrete a product |
| exocrine gland | description: secretes a product out through a duct ex: sweat glands, salivary glands, mammary glands and sebaceous glands |
| goblet cell | single cell that makes and secretes mucus |
| endocrine gland | description: have no duct function: to make and secrete hormones directly into the blood stream ex: thyroid, adrenal, pituitary |
| connective tissue | most abbundant tissue type arise from mesenchyme tissue. cells are seperated by a matrix. matric consist of fibers that add strength, and ground substance that holds everything together. blood supply varies. and types of cells varies. |
| collagen fibers | thick, tough, resist tearing |
| elastic fibers | stretch and recoil |
| reticular fibers | thinnest, form a delicate network |
| areolar | matrix: watery gel, all 3 fibers present. cells: fibroblast (fiber immature and active) function: wraps and cushions organs. site of inflammation location: many places, widely distributed. underneath epithelial tissue |
| adipose tissue | FAT Description: matrix- very little. cells: adipocytes function: energy reserve. insulates against heat loss. padding for delicate organs. |
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