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Lec 2.3 - Epithelial Tissues (Functions (Types (Exchange (Lungs &…
Lec 2.3 - Epithelial Tissues
Properties
Simple
Statified
Polar
1 Side face space
Specialised
Avascular
No blood cells
Capillaries
connective tissues
Repair
Functions
Protection
Control permeability
Provide sensation
Produce secretions
Immune function
Types
Exchange
Lungs & blood vessels
Transport/Absorption
Digestive & kidney
Ciliated
Respiratory & repro
Protective
Body surfaces & cavities
Secretory
Endocrine & exocrine
Combined
Small intestine
Classification
Layers
Simple
Stratified
Cell shape
Squamous
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Squashed
Keratinised
Non-karatinised
Columnar
Elongated nuclei
Simplified
Stratified
Pseudostratified
Cuboidal
Simple
Stratified
Trainsitional
Specialisation
Myoepithelia
Myofilaments
Contract
Secrete
Venom/Sweat
Glandular
Classified
Surface excrete
Endocrine (ductless)
Blood stream
Exocrine
tubular passageways
empty to surface body
Way excrete
Exocrine
Merocrine
Exocytosis
Mucin
Lube
Apocrine
Apical cell secretion
Sweat
Holocrine
Cell death
Secretion released
Replaced by Stem
Type of secretion
Serous glands
Watery
Mucous glands
Mucous
Mixed exocrine glands
Water & Mucous
Structure
Unicellular
within Epithelial layer
Multicellular
Endocrine or Exocrine
Sheet or tubular
Tubular branching
Skin
