project components: powerpoint project……….epithelial lecture excel component………...visual...
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Education 512Education 512Final ProjectFinal Project
Project Components:
Powerpoint Project……….Epithelial Lecture
Excel Component………...Visual Outline
Word Component…………Student Notes
Powerpoint Component…...Student Quiz
Created by… Stephen Chitraroff
Why are Epithelial Why are Epithelial Tissues Tissues
Important to Me?Important to Me?
Anatomy and PhysiologyMVHS ScienceMr. Chitraroff
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Begin
What is a Tissue?What is a Tissue?
organelles
cells
tissues
tissue systems
organs
organ system
organismMain Menu
What is Epithelium?What is Epithelium?
Epithelial tissues are widespread throughout the body and are responsible for:
covering all body surfaces. lining body cavities and hollow organs. form the major tissues in glands. perform a variety of functions including:
AbsorptionAbsorption FiltrationFiltration ExcretionExcretion SecretionSecretion DiffusionDiffusion ProtectionProtection
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What are the 3 Main What are the 3 Main Categories of Epithelium?Categories of Epithelium?
• The 3 main categories of epithelium areThe 3 main categories of epithelium are:– Squamous (squashed or flattened).– Cuboidal (cube-shaped)– Columnar (rectangular)
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Epithelium Can Have Epithelium Can Have Different Layers!Different Layers!
FormForm FunctionFunction LocationsLocations
SimpleSimple Single layer Absorption Blood Vessels
StratifiedStratified Multiple layers Protection Skin, Dig. Tract
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Epithelium Index PageEpithelium Index Page
Cilia and Microvilli
Simple Squamous Stratified Squamous
Transitional
Simple Columnar Ciliated Simple Columnar
Psuedostratified Columnar
Stratified Columnar
Simple Cuboidal Stratified Cuboidal
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Cilia and Cilia and MicrovilliMicrovilli
• CiliaCilia are protein-based structures that move in a wavelike fashion.– Function: Cilia function to filter respiratory tracts or
move objects through a cavity.
• Microvilli:Microvilli: Microvilli are globular structures.– Function: used primarily for absorption and secretion of
materials.Main Menu
Simple SquamousSimple Squamous
• Locations: Capillary walls, alveoli of the lungs, covering visceral organs, lining body cavities
• Function: diffusion and filtration
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Stratified SquamousStratified Squamous
• Locations: Integument (Skin), mouth, vagina, anus.
• Function: protection. Main Menu
Transitional EpitheliumTransitional Epithelium
• Locations: Ureter, urinary bladder.
• Function: distention and elasticity.
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Simple Columnar EpitheliumSimple Columnar Epithelium
• Locations: lining of the digestive tract.– Small intestine
– Large intestine
– Rectum
• Function: Protection, secretion, absorption.
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Ciliated Simple Columnar Ciliated Simple Columnar EpitheliumEpithelium
• Locations: lining of the respiratory tract.
– trachea
– Nasal passageway
– Bronchi of lungs
• Function: move pollutants to the mouth where they are swallowed.
– Filtration.
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Ciliated Pseudostratified Ciliated Pseudostratified Columnar EpitheliumColumnar Epithelium
(PSE) (PSE) (PSE) (PSE)
• Locations: lining of the respiratory tract.
– trachea
– Nasal passageway
– Bronchi of lungs
• Function: move pollutants to the mouth where they are swallowed.
– Filtration.
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Ciliated PSECiliated PSE
NOTE: This type of epithelium is often confused with stratified columnar epithelium due to the arrangement of the nuclei.
Free Surface
Basement Membrane
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Stratified Stratified Columnar Columnar EpitheliumEpithelium
• Locations: largest ducts of the salivary glands.
– Submandibular gland (lower jaw)– Parotid gland (side of face)– Mucosal glands (amylase-releasing)
• Function: passageway for digestive enzymes released by salivary glands.
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Simple Simple Cuboidal Cuboidal
EpitheliumEpithelium
• Locations: lining kidney tubules, salivary ducts and pancreatic ducts (pancreas).
• Function: secretion, excretion and absorption.
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Stratified Cuboidal EpitheliumStratified Cuboidal Epithelium
• Location: sweat ducts in the dermis layer of the skin.
• Appearance: generally 3-4 layers thick.
• Function: secretion of and transportation of sweat to the skin’s surface.
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