Histology-lab 4 (2019).pdf - LAB # 4 & 5: HISTOLOGY The...

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LAB #4 & 5:HISTOLOGYThe Microscopic Study of TissuesBIOL 341LAB (2019-2020)DrDeenaAbabneh
LAB OBJECTIVESGive the defining characteristics of each of the four majortissue types.Describe the appearance and differences among thetypes of epithelial tissues.Describe the appearance and differences among thetypes of connective tissues.Identify the three types of muscular tissue and describethe differences among them.Identify the parts of neurons and supporting cellsdescribed in this lab.State the location of these tissues what is their function.
TISSUESCells work together in functionally related groups calledtissuesTypes of tissues:1.Epitheliallining and covering2.Connectivesupport3.Musclemovement4.Nervouscontrol
CONNECTIVE TISSUEMost diverse and abundant tissueMain classesLoose and denseFibrous connective tissueBlood and lymphFluid connective tissueCartilage and Bone tissueSupporting connectivetissuesCommon components of connective tissue:Specialized CellsMatrixProtein fibersGround substanceVary according to tissue
Loose Connective tissueAdipose tissueBloodBoneCartilage (hyaline cartilage)Types Of Connective Tissue(viewed in lab)
LOOSE CONNECTIVE TISSUEDescriptionSecilaized cellsfibroblastsAll three fibers are present for support i.e. collagen,reticular, elastic fibersHighly vascular tissueFunctionWraps and cushions organsLocationWidely distributed underepitheliacovers organs and bloodvessels
ADIPOSE TISSUEDescriptionCells: closely packed adipocytesHave nucleus pushed to oneside by fat dropletFunctionProvides fuelInsulates against heat lossSupports and protects organsLocationUnder skinAround kidneysBehind eyeballs, withinabdomen and in breasts

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Term
Winter
Professor
Deena
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