Animal Structure Animal Structure and Functionand Function

TissueTissue

Groups of cells with a Groups of cells with a common structure and common structure and

functionfunction

TissuesTissues Epithelial TissueEpithelial Tissue

– tightly packed cells used for liningtightly packed cells used for lining Connective TissueConnective Tissue

– cells scattered through an extracellular cells scattered through an extracellular matrixmatrix

Nervous TissueNervous Tissue– transmits signals (neurons)transmits signals (neurons)

Muscle TissueMuscle Tissue– fibers for contractionfibers for contraction

Epithelial Epithelial TissueTissue

Cell layersCell layers– SimpleSimple– StratifiedStratified– PseudostratifiedPseudostratified

Shape of CellsShape of Cells– CuboidalCuboidal– ColumnarColumnar– SquamousSquamous

Connective TissueConnective Tissue Collagenous FibersCollagenous Fibers

– Collagen (most abundant protein)Collagen (most abundant protein) Elastic FibersElastic Fibers

– Elastin (protein)Elastin (protein) Reticular FibersReticular Fibers

– CollagenCollagen– join connective tissuesjoin connective tissues

Connective TissueConnective Tissue

Loose Connective Loose Connective TissueTissue– binds epithelial to binds epithelial to

underlying tissueunderlying tissueFibroblasts Fibroblasts

(extracellular (extracellular fibers)fibers)

Macrophages Macrophages (immune system(immune system))

Connective TissueConnective Tissue

Adipose TissueAdipose Tissue– stores fatstores fat

Fibrous Connective Fibrous Connective TissueTissue– TendonsTendons– LigamentsLigaments

Connective TissueConnective Tissue

CartilageCartilage– chondrocyteschondrocytes

BoneBone– osteoblastsosteoblasts– Haversian systemHaversian system

Connective TissueConnective Tissue

BloodBlood– plasmaplasma– erythrocyteserythrocytes– leukocytesleukocytes– plateletsplatelets

Nervous TissueNervous Tissue

NeuronsNeurons– Cell bodyCell body– AxonsAxons– DendritesDendrites

Muscle TissueMuscle Tissue

SkeletalSkeletal CardiacCardiac SmoothSmooth