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Histology
| Term | Definition |
|---|---|
| cells in epithelial tissue are | packed tightly together |
| many epithelial cells | produce fluid |
| basement membrane | under epithelia cells, provides nutrients |
| 4 functions of epithelial tissue | protection, absorption, secretion, sensation |
| epithelial cell shapes | squamous (flat), cuboidal, columnar |
| epithelial arrangements | simple, stratified, transitional, pseudostratified |
| ciliated cells | interact with the outside environment |
| simple squamous | single layer of flattened cells, disc shaped central nuclei, allows passage of materials by diffusion + filtration, kidney, lung airsacks, blood vessels |
| Simple cuboidal | single layer of cube-like cells, secretion and absorption, kidney tubule, small glands |
| Simple columnar | single layer of tall cells, some have cilia, absorption, secretion of mucus, nonciliated lines digestive tract, ciliated lines small bronchi |
| Pseudostratified columnar | single layer of cells at different heights, some reaching the free surface, secretion, propulsion of mucus, nonciliated type in sperm-carrying ducts, ciliated in trachea + upper respiratory tract |
| Stratified squamous | thick membrane with several layers of cell, surface cells are dead, protection, lining of esophagus, epidermis of skin |
| Transitional | resembles stratified squamous, basal cells cuboidal/columnar, surface dome shaped, stretches, lines uterus, bladder + urethra |
| stratified cuboidal | 2+ layers of cuboidal cells, protection, mammary glands, sweat glands |
| tissues of muscle cells are | extremly long |
| bulk of muscle tissue is made oc | myosin and actin |
| myofilaments arrange to form | bundles |
| skeletal muscle | voluntary muscle, attached to skeleton by tendons, movement + posture, visible striations, 35-40% of human body |
| smooth muscle | involuntary, line organs, no visible striations |
| cardiace muscle | heart, dense + strong tissue. large numerb of mitochondria, striated, arranged into intercalated discss |
| nervous tissue | brain, spinal cord, nerves, communication |
| neurons | send + recieve messages |
| neuroglia | support + nutrients |
| tissues | groups of similar cells that work together to perform a function |
| organ | groups of tissues that perform similar functions |
| organ system | group of organs that work together for similar function |
| histology | study of tissues |
| function of muscle tissues | movement |
| what 2 proteins make up the bulk of muscle tissues | myostin and actin |
| what are myofillaments | bundles of muscle fibres, arranged into larger bundles to make muscles |
| where are skeletal muscles found | attatched to skeleton |
| where are smooth muscles found | lining organs |
| which muscle tissues have striations | skeletal, cardiad |
| which muscle tissue is voluntary | skeletal |
| why do cardiac muscles have so many mitochondria | provides energy for continous contractions |
| what is the function of nervous tissue | communication |
| difference between squamous, cuboidal and columnar | squamous flat, cuboidal 3d cube, columnar colum |
| difference between stratified and simple | simple is flat |
| diff between transitional and psuedostratified | psuedostratified is one layer |
| what types of epithelial are in the stomach | simple, stratified, psuedostraftifed columnar |
| types of epithelial in lungs | ciliated psuedostratified columnar |
| type of epithelial on skin | stratified squamous |
| type of epithelial in bladder | transitional |
| type of epithlial in sweat glands | simple cuboidal, stradified cuboidal, glandular |
| what is the purpose of the basement membrane | epithelial cells sstretch to teh basement membrane, which allows nutrients to diffuse into the cells |
| 3 parts of connective tissue | cell, fibers, extracellular components |
| fibroblasts | produce connective tissue |
| what body parts are connective tissue | blood, bone, cartaliege, tendons, ligaments, fat, lympths |
| inerstitial fluid | fluid that contains proteins and cells |
| collagen | strong, provides support |
| elastin | stretchy |
| reticular | fine network |
| function of connective tissue | protection, storage, support, transport, insulate, connect |
| 3 characteristics of connective tissue differnt from epithelial | less dense, vascular, extracellular network |
| most abundent tissue | connective |
| connective tissue can be | vascular and avascular |
| avasular made up of more | extracellular matrices and substances |
| loose connective/aerolar | gell like matrix with all 3 fibers, wraps and cushiosn organs, under epithelia, packages organs |
| adipose | matrix, sparse, closely packed fat cells, nucleus pushed to side, stores food fuel, insluates, underskin, around kidneys and eyes, breasts |
| loose connective tissue, reticular | network of reticualr fiberst in loost ground substance, fiber forms soft interernal skeleton, lymphod organs |
| dense regular | parralel collagen fibers with a few elastin, attatched muscles to bones or to mucles, bone to bone, tendon, ligaments |
| dense irregular | irregularly attatched collagen fibers, able to withstand tension, structeral strength, dermis of skin |
| hyaline cartilage | amophus but firm matrix, impendtrable network, supports and renforces, oners ends of long bones in joints, embyotic skeleton |
| elastic cartalige | more elastic fibers, maintains shape wile allowing for great felxibility, supports external ear |
| fibrocartalige | matrix less firm than hyaline, thick collagen fibers, tensile strength, absorbs compressive shock, intervetrabla discs |
| compact bone | hard, calcified matrix, supports + protects, levers for muscles, bones, |
| blood | cells in fluid matrix, transport gasses, nutrients and waste, within blood vessels |
| lymphoid | white bloodcells, immunity, develop in bone marrow |
| spongy bone | where blood is produced, proximal to joins, ends of long bones + vertabrae |
| artery | distribute blood, circlatory system |
Created by:
Ami0112
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