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TissueTissue

Epithelial

Connective

Nervous

Muscular

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EpithelialEpithelial

Composed entirely Composed entirely of cellsof cellsMost Common type Most Common type

Come in Two Come in Two CategoriesCategories– SimpleSimple– StratefiedStratefied

Simple Stratified Home

Simple EpitheliaSimple Epithelia

One layer of cellsOne layer of cells

Broken into 3 Broken into 3 subcategoriessubcategories– Simple CuboidalSimple Cuboidal– Simple ColumnarSimple Columnar– Simple SquamousSimple Squamous

Simple Columnar Simple Cuboidal SimpleSquamous Epithelia Home

Simple ColumnarSimple Columnar

Single layer of long cells Single layer of long cells with oval nucleiwith oval nuclei

Absorbs and secretesAbsorbs and secretes

Non-ciliated simple Non-ciliated simple columnar cells line columnar cells line digestive tract and gall digestive tract and gall bladderbladder

Ciliated simple columnar Ciliated simple columnar cells lines uterine tubes, cells lines uterine tubes, and other regions of the and other regions of the uterusuterus

Simple Epithelia Stratified Epithelia Home

Simple CuboidalSimple Cuboidal

Single layer of Single layer of square like cells square like cells with large circular with large circular nucleinuclei

Secrets and Secrets and absorbs in kidney absorbs in kidney tubules, ducts of tubules, ducts of glands and ovary glands and ovary surfacesurfaceSimple Epithelia Stratified Epithelia Home

Simple SquamousSimple Squamous

Single layer of Single layer of flattened cells with flattened cells with disc shaped nucleidisc shaped nuclei

Used for Diffusion Used for Diffusion and Filtrationand Filtration


Stratefied EpitheliaStratefied Epithelia

Multi-layeredMulti-layered

Broke into three Broke into three subcategoriessubcategories– Stratified CuboidalStratified Cuboidal– Stratified ColumnarStratified Columnar– Stratified Squamous Stratified Squamous

Stratified Columnar Stratified Cuboidal Stratified Squamous Epithelium Home

Stratified Columnar Stratified Columnar

Very uncommon in Very uncommon in the bodythe body

Found in pharynx Found in pharynx and male urethra and male urethra

Also at transitional Also at transitional areas between two areas between two other types of other types of epitheliumepithelium


Stratified Cuboidal Stratified Cuboidal

Like Stratified Like Stratified columnar they are columnar they are also very also very uncommon in the uncommon in the bodybody

Usually two layersUsually two layers

Found in sweat and Found in sweat and mammary glandsmammary glands


Stratified SquamousStratified Squamous

Made of several Made of several layers of flat cellslayers of flat cells

Protects underlying Protects underlying areas subjected to areas subjected to cuts and other cuts and other woundswounds

Located in the Located in the epidermis and the epidermis and the lining of the mouthlining of the mouth


Connective TissueConnective Tissue

BoneBone

BloodBlood

CartilageCartilage– FibrocartilageFibrocartilage– HyalineHyaline– Elastic CartilageElastic Cartilage

ProperProper– DenseDense

RegularRegular

IrregularIrregular– LooseLoose

AdiposeAdipose

ReticularReticular

AreolarAreolar

Bone Proper Cartilage Blood Home

Bone (Osseous Tissue)Bone (Osseous Tissue)A connective tissue A connective tissue that forms the that forms the bony skeletonbony skeleton

Used to support Used to support and protect body and protect body structuresstructures

Connective Tissue Home

BloodBloodThe most Atypical The most Atypical connective tissueconnective tissue

Developed from Developed from mesenchyme and mesenchyme and consists of Blood consists of Blood cellscells

Connective Tissue Home

CartilageCartilage

Broken into three Broken into three partsparts– Fibro-cartilageFibro-cartilage– HyalineHyaline– Elastic CartilageElastic Cartilage

Connective Tissue Fibro-cartilage Hyaline Elastic Cartilage Home

Cartilage : Fibro-cartilageCartilage : Fibro-cartilageRotating rows of Rotating rows of chondrocytes and chondrocytes and collagen fiberscollagen fibers

Found where Found where strong support and strong support and heavy resistance is heavy resistance is requiredrequired

Connective Tissue Cartilage Home

Cartilage : HyalineCartilage : HyalineFirm matrix with a Firm matrix with a network of collagen network of collagen fibersfibers

Has lacunaeHas lacunae

Supports Supports compressioncompression

Found in Found in embryonic skeletonembryonic skeleton


Cartilage : Elastic CartilageCartilage : Elastic CartilageVery simaler to Very simaler to Hyaline cartilage Hyaline cartilage but consists of but consists of more elastin fibersmore elastin fibers

Found where Found where strength and strength and exceptional exceptional strechability are strechability are foundfound


ProperProperBroken into two Broken into two categoriescategories– DenseDense

Dense RegularDense Regular

Dense IrregularDense Irregular

– LooseLooseLoose AdiposeLoose Adipose

Loose ReticularLoose Reticular

Loose AreolarLoose Areolar

Connective Tissue Proper : Dense Proper : Loose Home

Proper: DenseProper: DenseBroken into two Broken into two subcategoriessubcategories– Dense : RegularDense : Regular– Dense: IrregularDense: Irregular

Connective Tissue Dense Regular Dense Irregular Proper Home

Proper: Dense RegularProper: Dense RegularParallel collagen fibers Parallel collagen fibers with a few elastic with a few elastic fibersfibers

Major cell type is Major cell type is fibroblastsfibroblasts

Attaches muscles to Attaches muscles to bone, muscle to bone, muscle to muscle and bone to muscle and bone to bonebone

Found in tendons and Found in tendons and ligamentsligaments

Connective Tissue Proper Home

Proper: Dense IrregularProper: Dense IrregularSometimes arranges Sometimes arranges collagen fibers with collagen fibers with some elastic fiberssome elastic fibers

Major cell type : Major cell type : FibroblastsFibroblasts

Withstands a lot of Withstands a lot of tensiontension

Found in digestive Found in digestive tract and fibrous tract and fibrous organ capsulesorgan capsules


Proper: LooseProper: LooseBroken into three Broken into three categoriescategories– AreolarAreolar– AdiposeAdipose– ReticularReticular

Connective Tissue Adipose Reticular Areolar Proper Home

Proper : Loose AdiposeProper : Loose AdiposeAlso called (Fat Also called (Fat tissue)tissue)

Great nutrition Great nutrition storing abilitystoring ability

Closely packed Closely packed cellscells

Can develop Can develop almost anywherealmost anywhere


Proper : Loose Reticular Proper : Loose Reticular Only fibers in its Only fibers in its matrix are reticular matrix are reticular fibersfibers

Consist of reticular Consist of reticular cells aswellcells aswell


Proper : Loose AreolarProper : Loose AreolarLoosly arranged Loosly arranged fibersfibers

Areola means “small Areola means “small open space”open space”

FunctionsFunctions– Support and bind Support and bind

other tissueother tissue– Holding bodily fluidsHolding bodily fluids– Defending against Defending against

infectioninfection


NervousNervous

Main component of Main component of the nervouse the nervouse system – brain, system – brain, spinal cord and spinal cord and nervesnerves

Made of branching Made of branching cells called cells called neuronsneurons

Neurons Home

NeuronsNeurons

Neurons are highly Neurons are highly specialized nerve specialized nerve cells that generate cells that generate and conduct nerve and conduct nerve impulsesimpulses

Usually branching Usually branching cellscells

Nervous Home

MuscularMuscular

Highly cellularHighly cellular

Possess Possess myofilamentsmyofilaments

Broke into three Broke into three typestypes– SkeletalSkeletal– CardiacCardiac– SmoothSmooth

Skeletal Smooth Cardiac Connective Tissue Home

SkeletalSkeletal

Long cylindrical Long cylindrical cellscells

Controls voluntary Controls voluntary movementmovement

Found in skeletal Found in skeletal muscles that muscles that attach bones or attach bones or skin.skin.

Muscular Connective Tissue Home

SmoothSmooth

Sheets of cells with Sheets of cells with the nuclei in the the nuclei in the centercenter

Propels substances Propels substances along internal along internal passagewayspassageways

Found in the walls Found in the walls of organsof organs


CardiacCardiac

Branching Branching uninucleate cells uninucleate cells connect at connect at intercalated discsintercalated discs

Starts blood Starts blood circulationcirculation

Found in the walls Found in the walls of the heartof the heart


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