TISSUESCH. 4: THE FABRIC OF LIFE

TISSUE TYPESEpithelial tissue• CoversConnective tissue• SupportsMuscle tissue• MovesNervous tissue• Controls

TISSUE TYPESEpithelial Tissue• Cover structures and organs• Lines cavities• 2 Types of epithelium

• Covering and Lining epithelium• Glandular epithelium

• Functions as an interface tissue• Protection• Absorption• Filtration• Excretion• Secretion• Snesory reception

TISSUE TYPESSpecial Epithelial Characteristics• Polarity• Specialized Contacts• Supported by

Connective Tissue• Avascular but

innervated• Regenerative Capacity

TISSUE TYPESClassification of epithelia• Simple epithelia• Stratified epithelia

Epithelia Cell types• Squamos• Cuboidal• Columnar

SIMPLE EPITHELIASimple Squamous Epithelium• Endothelium• Mesothelium

SIMPLE EPITHELIASimple Cuboidal Epithelium

SIMPLE EPITHELIASimple Columnar Epithelium

SIMPLE EPITHELIAPseudostratified columnar epithelium

STRATIFIED EPITHELIAStratified Squamous Epithelium

STRATIFIED EPITHELIATransitional Epithelium

GLANDULAR EPITHELIAEndocrine glands• Produce hormones• Ductless

GLANDULAR EPITHELIAExocrine glands• Unicellular (mucous

and Goblet cells)

GLANDULAR EPITHELIAExocrine glands (cont.)• MulticellularStructural classifications• Fig 4.5

CONNECTIVE TISSUECommon Characteristics• Mesenchymal

origin• Varying

vascularity• Extracellular

matrix

CONNECTIVE TISSUEStructural Elements• Extracellular matrix

• Fibers• Ground substance

• Cells• Fat Cells• WBC’s (neutrophils,

eosinophils, lymphocytes)

• Mast Cells = mediate inflammation

• Macrophages

Fig 4.7

CONNECTIVE TISSUEFibers• Collagen Fibers• Elastic Fibers• Reticular fibers

Fig 4.7

CONNECTIVE TISSUEPrimary Cells by tissue type table 4.1• Connective Tissue Proper

• Fibroblasts• Cartilage

• Chondroblasts/Chondrocytes

• Bone Tissue• Osteoblasts/

Osteocytes• Blood

• Erythrocytes• Leukocytes• Platelets

CONNECTIVE TISSUETypes of connective tissue• Connective Tissue Proper

• Loose connective tissue: Areolar, Adipose, Reticular• Dense Connective Tissue: Regular, Irregular, Elastic

• Cartilage• Hyaline• Elastic• Fibrocartilage

• Bone• Blood

CONNECTIVE TISSUE: PROPERLoose Connective Tissue• Areolar

CONNECTIVE TISSUE: PROPERLoose Connective Tissue• Adipose

CONNECTIVE TISSUE: PROPERLoose Connective Tissue:• Reticular

CONNECTIVE TISSUE: PROPERDense Connective Tissue• Dense regular

CONNECTIVE TISSUE: PROPERDense Connective Tissue• Dense irregular

CONNECTIVE TISSUE: PROPERDense Connective Tissue• Elastic

CONNECTIVE TISSUE: CARTILAGEHyaline Cartilage

CONNECTIVE TISSUE: CARTILAGEElastic Cartilage

CONNECTIVE TISSUE: CARTILAGEFibrocartilage

CONNECTIVE TISSUEOsseous (bone) tissue

CONNECTIVE TISSUEBlood

CONNECTIVE TISSUEMuscle Tissue• Skeletal Muscle

• Cardiac Muscle

• Smooth Muscle

CONNECTIVE TISSUENervous Tissue

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