A&P Tissue (Histology)

Simple Squamous Epithelium
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Terms in this set (81)
Simple Columnar Epitheliumoccasional cells specialized to be GOBLET CELLS which produce mucusSimple Columnar Epitheliumusual function = complex absorption or secretionSimple Columnar Epitheliumsome specific locations: a) lining stomach b) lining small intestine - notice that MICROVILLI are present c) lining fallopian tubes - here CILIA are present to move the eggSimple Cuboidal Epitheliumcells are square when cut top to bottomSimple Cuboidal Epitheliumcells are hexagonal when viewed from surfaceSimple Cuboidal Epitheliumusual function = secretionSimple Cuboidal Epitheliumsome specific locations: a) most glands b) kidney tubulesTransitional Epitheliumsurface layer of cells are dome-shaped and may have two nucleiTransitional Epitheliumlower layers of cells are vary in shape between cuboidal and columnarTransitional Epitheliumfunction = allows stretchingTransitional Epitheliumsome specific locations: a) lining of bladder and uretersCiliated Pseudostratified Columnar Epitheliumone layer thick with every cell touching the basement membraneCiliated Pseudostratified Columnar Epitheliumsome cells tall and extend to surface; other cells appear more cuboidalCiliated Pseudostratified Columnar Epitheliumcilia "beat" and move secretionsCiliated Pseudostratified Columnar Epitheliummost common function = warms, moistens, filters airCiliated Pseudostratified Columnar Epitheliumsome specific locations: a) lining of most of the respiratory tractAreolar Connective Tissuemain type of cell = fibroblast "fibro-maker"Areolar Connective Tissuedefensive cells present = macrophage, mast cell, etc.Areolar Connective Tissueground substance = gelAreolar Connective Tissuefibers, all three types, in loose organizationAreolar Connective Tissuefunction - provides a moveable connection between structures without impeding flow of nutrition of defensive cellsAreolar Connective Tissuesome specific locations: a) below skin, known as HYPODERMIS b) as "packing tissue", known as FASCIA c) as base of body membranesAdipose Tissuecells = adipocytes, "fat cells"Adipose Tissuecells shaped like signet ringAdipose Tissuenucleus displaced to one sideAdipose Tissuelarge vacuole in cell filled with lipidAdipose Tissuenetwork of reticular fibers between cellsAdipose Tissuefunctions - protective cushion, insulation, storage of excess fuelAdipose Tissuesome specific locations: a) under skin, around heart, "spare tires"Dense Fibrous Connective Tissue (White Fibrous Tissue)predominance of collagen fibersDense Fibrous Connective Tissue (White Fibrous Tissue)cells = fibroblast, but squashed among productDense Fibrous Connective Tissue (White Fibrous Tissue)poorly vascularizedDense Fibrous Connective Tissue (White Fibrous Tissue)two arrangements: a) regular -thick bundles of longitudinal collagen fibers all parallel -found in TENDONS, LIGAMENTS, APONEUROSIS b) irregular -flat woven sheets of collagen fibers in knarled arrangement -may contain some elastic fibers -forms CAPSULES around organs, found in deeper layer of skin, DERMISHyaline Cartilagepearly, glass-like appearance, when freshHyaline Cartilagematrix contains no visible fibers, although collagen protein is presentHyaline Cartilagecells are found in round lacunae as singles or pairsHyaline Cartilagesome specific locations: joints, nose, larynx, trachea, ribsHyaline Cartilagefunctional design - smoothness resilience under pressureElastic Cartilagebasic structure similar to hyaline cartilageElastic Cartilagesignificant amount of elastic fibers in matrixElastic Cartilagesome specific locations: external ear, epiglottis, auditory tubeElastic Cartilagefunctional design - as with hyaline cartilage + highly flexible and elastic, "boingy"Fibrocartilagebasic structure similar to hyaline cartilageFibrocartilagelarge amount of collagen, almost masking chondrocytesFibrocartilagesome specific locations: intervertebral discs, pubic symphysis, menisciFibrocartilagefunctional design - as with hyaline cartilage + reinforced with collagen to be a "shock absorber"Compact Osseous Tissuestructural unit of tissue = osteon or Haversian systemCompact Osseous Tissuecentral (Haversian) canal which contains blood vessels and nerveCompact Osseous Tissuelamellae which are concentric rings of matrixCompact Osseous Tissuelacunae which are found between lamellae and are "spider-shaped" spaces that contain osteocytesCompact Osseous Tissuecanaliculi are "tiny canals" which interconnect lacunaeSpongy Osseous Tissuefound adjacent to and continuous with compact boneSpongy Osseous Tissueless compactly arranged, lighter weight than compact osseous tissueSpongy Osseous Tissuestructural units = trabeculae a) branching plates of matrix b) form "cavities" for bone marrowSkeletal Muscle Tissuemuscle fibers (cells) are long, cylindrical, multinucleatedSkeletal Muscle Tissuenuclei close to cell membrane (sarcolemma)Skeletal Muscle Tissuemuscle fibers (cells) are arranged in bundles (fascicles)Skeletal Muscle Tissuethis type of muscle tissue often found attached to the skeletonSkeletal Muscle Tissuevoluntary control is possibleCardiac Muscle Tissuecontracts rhythmically and continuallyCardiac Muscle Tissuecells have one nucleus, not multinucleatedCardiac Muscle Tissuecells connected by intercalated disks (specialized cell junctions)Cardiac Muscle Tissuesome cells bifurcated; form networkCardiac Muscle Tissuenuclei elongated and deep in sacroplasmCardiac Muscle Tissuethis type of muscle tissue is only found in walls of heartCardiac Muscle TissueinvoluntarySmooth Muscle Tissuespindle-shaped fibersSmooth Muscle TissueuninucleatedSmooth Muscle TissueNOT striatedSmooth Muscle TissueinvoluntarySmooth Muscle Tissuefound in walls of hollow organs i.e. blood vessels, digestive organs, urinary bladder, uterus