tissues
TRANSCRIPT
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TissuesTissues
• Groups of cells that have similar functions and structures
• Epithelial• Muscle• Connective• Nervous• Align cells to cover
and protect them
Epithelial Connective Muscle Nervous Credits
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EpithelialEpithelial
Classified by the number of layers
Classified by shape
Glandular Simple Stratified Home
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GlandularGlandular
Endocrine glandsExocrine glandsMost common
types of epithelia
Epithelial Home
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SimpleSimple
Consist of one layer of cells
Covering epitheliaLining epithelia
Pseudostratified Squamous Cuboidal Columnar epithelia home
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PseudostratifiedPseudostratified
Actually a simple columnar epithelium
Gives the false appearance of being stratified
Is often ciliated
Simple Epithelial Home
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SquamousSquamous
A classification of epithelium
Depends on shape
Simple Epithelial Home
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CuboidalCuboidal
A classification of epithelium
Depends on shape
Simple Epithelial Home
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ColumnarColumnar
A classification of epithelium
Depends on shapeCan be nonciliatedCan be ciliated
Simple Epithelial Home
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StratifiedStratified
Consists of two or more layers of epithelial cells
Covering epitheliaLining epithelia
Transitional Squamous Cuboidal/Columnar Epithelial Home
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TransitionalTransitional
Stratified squamous epithelium
Has rounded cellsHas the ability for
cells to slide over one another to stretch an organ
Stratified Epithelial Home
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SquamousSquamous
Classified based on shape
Non-keratinizedKeratinized
Stratified Epithelial Home
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Cuboidal/ColumnarCuboidal/Columnar
Classification of epithelium depending on shape
Not common in the body
Stratified Epithelial Home
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Connective TissuesConnective Tissues
Found in all parts of the body
Most abundant and widely distributed of tissues
Most have a large amount of blood vessels
Composed of many types of cells
Made up of noncellular and nonliving material called a matrix
Proper Cartilage Bone Blood Home
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CartilageCartilage
Cartilage protects bones
Cartilage helps form bones
Found in the knees, ears, and nose
Hyaline Elastic Fibrocartilage Connective Home
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HyalineHyaline
Has chondrocytes in lacunae
Found in:◦ Embryonic skeleton◦ The end of long
bones◦ Nose◦ Trachea◦ larynx
Cartilage Connective Home
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ElasticElastic
Cartilage Connective Home
•Maintains shape
•Maintains structure
•Allows flexibility
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FibrocartilageFibrocartilage
Cartilage Connective Home
•Provides tensile strength
•Absorbs compression shock
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BoneBone
Proper Dense Connective Home
•Stores calcium
•Stores minerals
•Stores fat
•Marrow inside of bones is the site of hematopoiesis
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ProperProper
Loose Areolar Adipose Reticular Bone Connective Home
•Embryonic•Includes:
–Areolar–Adipose–Reticular–Dense fibrous connective tissues
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LooseLoose
Bone Connective Home
•Areolar
•Adipose
•Reticular
•Fat storage
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AreolarAreolar
Bone Connective Home
•Considered the prototype of the connective tissues
•All other connective tissues are based off of the structure of the areolar connective tissues
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AdiposeAdipose
Bone Connective Home
•Fat tissues
•Insulates the body
•Stores food for the body
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ReticularReticular
Bone Connective Home
•Loose ground substance•Forms a soft internal skeleton•Resembles fibroblastsSupports many free blood cells in lymph nodes, the spleen, and bone marrow
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DenseDense
Regular Irregular Elastic BoneConnective Home
•Often referred to as dense fibrous connective tissues•Fibroblasts•Includes:
–Regular fibers–Irregular fibers–Elastic fibers
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RegularRegular
Bone Connective Home
•Fibroblasts
•Found in tendons
•Ligaments
•Aponeuroses
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IrregularIrregular
Bone Connective Home
•Fibroblasts
•Found in dermis
•Sub mucosa of the digestive tract
•Fibrous organ capsules
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ElasticElastic
Bone Connective Home
•Combine strength with elasticity •Dense fibrous tissues
•Occurs in regular and irregular connective tissues
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BloodBlood
Connective Home
•Closed circulatory system in humans
•Open circulatory system in other animals
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MuscleMuscle
Voluntary Involuntary Home
•Produces most types of body movements•Three main types of subcategories of muscle tissues are:
–Cardiac–Skeletal–smooth
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VoluntaryVoluntary
Skeletal Muscle Home
•Movements of the body
•Consciously controlled
•Striated
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SkeletalSkeletal
Muscle Home
•Flesh of the body
•Attached to the skeleton
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InvoluntaryInvoluntary
Smooth Cardiac Muscle Home
•Unconsciously controlled movements of the body
•Happens without humans being aware
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SmoothSmooth
Muscle Home
•Mainly found in the walls of hollow organs
•Normally two layers that run perpendicular to each other
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CardiacCardiac
Muscle Home
•Found only in the heart
•Has intercalated discs
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NervousNervous
Neurons Home
•Neuroglia
•Neurons
•Most associated with nervous system functioning
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NeuronsNeurons
SensitiveHighly specializedReceives and
sends stimuli to the brain and the whole body
Nervous Home
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CreditsCreditsHome
◦ Voluntary slide picture-http://images.google.com/imgres?imgurl=http://www.esg.montana.edu/esg/kla/ta/muscar.jpg&imgrefurl=http://www.esg.montana.edu/esg/kla/ta/tissues.html&h=257&w=263&sz=18&hl=en&start=9&sig2=5Uq238OaL5YOfYzZBJLH5A&tbnid=torkyIduFc7D4M:&tbnh=109&tbnw=112&ei=3MEOR4uUBo7qhwLcz6H8Cg&prev=/images%3Fq%3Dvoluntary%2Btissue%26gbv%3D2%26ndsp%3D20%26svnum%3D10%26hl%3Den%26sa%3DN
◦ Involuntary slide picture-http://micro.magnet.fsu.edu/primer/anatomy/brightfieldgallery/images/mammalcardiacmusclesmall.jpg
◦ Nervous slide picture-http://washington.uwc.edu/about/faculty/schaefer_w/TISSUES/nervous_tissue1.JPG
◦ Neurons slide picture-http://www.rndsystems.com/images/ihc/c_nt4ctx_bg.jpg
◦ Slides done by Lydia Heter
◦ Pictures by Lydia Heter and Kaitlyn Patterson
◦ Sound by Lydia Heter
◦ Glandular slide picture-http://www.microscopyu.com/galleries/pathology/colonadenocarcinoma.html
◦ Reticular slide picture-http://neuromedia.neurobio.ucla.edu/campbell/connective_tissue/wp_images/34_reticular_fibers.gif
◦ Dense slide picture-http://kentsimmons.uwinnipeg.ca/cm1504/15lab42006/DensRegularCT.jpg
◦ Regular slide picture-http://cellbio.utmb.edu/microanatomy/connective_tissue/00004525.jpg
◦ Irregular slide picture-http://medinfo.ufl.edu/year1/histo/images/m8a.jpg
◦ Skeletal slide picture-http://www.dmacc.edu/instructors/rbwollaston/Biology_Drawings/skeletal_muscle.gif