tissues ch. 4: the fabric of life. tissue types epithelial tissue covers connective tissue supports...
TRANSCRIPT
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TISSUES
CH. 4: THE FABRIC OF LIFE
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TISSUE TYPES
Epithelial tissue
• Covers
Connective tissue
• Supports
Muscle tissue
• Moves
Nervous tissue
• Controls
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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
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TISSUE TYPES
Special Epithelial Characteristics
• Polarity
• Specialized Contacts
• Supported by Connective Tissue
• Avascular but innervated
• Regenerative Capacity
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TISSUE TYPES
Classification of epithelia
• Simple epithelia
• Stratified epithelia
Epithelia Cell types
• Squamos
• Cuboidal
• Columnar
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SIMPLE EPITHELIA
Simple Squamous Epithelium
• Endothelium
• Mesothelium
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SIMPLE EPITHELIA
Simple Cuboidal Epithelium
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SIMPLE EPITHELIA
Simple Columnar Epithelium
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SIMPLE EPITHELIA
Pseudostratified columnar epithelium
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STRATIFIED EPITHELIA
Stratified Squamous Epithelium
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STRATIFIED EPITHELIA
Transitional Epithelium
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GLANDULAR EPITHELIA
Endocrine glands
• Produce hormones
• Ductless
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GLANDULAR EPITHELIA
Exocrine glands
• Unicellular (mucous and Goblet cells)
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GLANDULAR EPITHELIA
Exocrine glands (cont.)
• Multicellular
Structural classifications
• Fig 4.5
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CONNECTIVE TISSUE
Common Characteristics
• Mesenchymal origin
• Varying vascularity
• Extracellular matrix
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CONNECTIVE TISSUEStructural Elements
• Extracellular matrix
• Fibers• Ground substance
• Cells
• Fat Cells• WBC’s (neutrophils,
eosinophils, lymphocytes)
• Mast Cells = mediate inflammation
• Macrophages
Fig 4.7
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CONNECTIVE TISSUE
Fibers
• Collagen Fibers
• Elastic Fibers
• Reticular fibers
Fig 4.7
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CONNECTIVE TISSUEPrimary Cells by tissue type table 4.1
• Connective Tissue Proper
• Fibroblasts• Cartilage
• Chondroblasts/Chondrocytes
• Bone Tissue
• Osteoblasts/Osteocytes
• Blood
• Erythrocytes• Leukocytes• Platelets
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CONNECTIVE TISSUE
Types of connective tissue
• Connective Tissue Proper
• Loose connective tissue: Areolar, Adipose, Reticular• Dense Connective Tissue: Regular, Irregular, Elastic
• Cartilage
• Hyaline• Elastic• Fibrocartilage
• Bone
• Blood
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CONNECTIVE TISSUE: PROPER
Loose Connective Tissue
• Areolar
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CONNECTIVE TISSUE: PROPER
Loose Connective Tissue
• Adipose
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CONNECTIVE TISSUE: PROPER
Loose Connective Tissue:
• Reticular
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CONNECTIVE TISSUE: PROPER
Dense Connective Tissue
• Dense regular
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CONNECTIVE TISSUE: PROPER
Dense Connective Tissue
• Dense irregular
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CONNECTIVE TISSUE: PROPER
Dense Connective Tissue
• Elastic
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CONNECTIVE TISSUE: CARTILAGE
Hyaline Cartilage
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CONNECTIVE TISSUE: CARTILAGE
Elastic Cartilage
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CONNECTIVE TISSUE: CARTILAGE
Fibrocartilage
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CONNECTIVE TISSUE
Osseous (bone) tissue
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CONNECTIVE TISSUE
Blood
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CONNECTIVE TISSUE
Muscle Tissue
• Skeletal Muscle
• Cardiac Muscle
• Smooth Muscle
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CONNECTIVE TISSUE
Nervous Tissue
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