Презентация на тему Tissues: group of cells that are similar in structure and function

Tissues: group of cells that are similar in structure and functionEpithelium: covering, linings of surfacesConnective: support Function of epithelial tissue: Protection: skin protects from sunlight, bacteria, physical damageAbsorption: lining of small intestine, Classification of epithelial tissue Cell shapeSquamous=falttened like fish scalesCuboidal=cubesColumnar=columnsCell layersSimple (one layer)Stratified (many layer)Named for the Simple squamous epithelium  Structure:Single layer of flattened cell Simple cuboidal epithelium  StructureSingle layer of cube shaped cells Simple columnar epithelium  StructureElongated layer of cell with nuclei at same level Pseudostratified epithelium Structure Irregularly shaped cell with nuclei at different level-appear stratified, but aren’t. Stratified squamous epithelium Structure Many layers (usually cubodial/columnar at bottom and squamous at top) Shape of exocrine glands BranchingSimple, single, unbranched ductCompound-branchedShapeTubular or alveolarTubular-shaped like a tubeAlveolar-shaped like flasks or

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Слайд 1

covering, linings of surfacesConnective: support bone, ligaments, fatMuscle: movementNervous: control brain, nerves, spinal cord

Tissues: group of cells that are similar in structure and function
Epithelium: covering, linings of surfaces
Connective: support bone, ligaments, fat
Muscle: movement
Nervous: control brain, nerves, spinal cord


Слайд 2

damageAbsorption: lining of small intestine, absorbing nutrient into blood.Filtration: lining of kidney tubules filtration waste

Function of epithelial tissue:

Protection: skin protects from sunlight, bacteria, physical damage
Absorption: lining of small intestine, absorbing nutrient into blood.
Filtration: lining of kidney tubules filtration waste from blood plasma
Secretion: different glands perspiration, oil, digestive enzyme and mucus


Слайд 3

layer)Stratified (many layer)Named for the type of cell at the apical surface

Classification of epithelial tissue

Cell shape
Squamous=falttened like fish scales
Cuboidal=cubes
Columnar=columns
Cell layers
Simple (one layer)
Stratified (many layer)
Named for the type of cell at the apical surface


Слайд 6

Simple squamous epithelium

Structure:
Single layer of flattened cell




Слайд 7

Simple cuboidal epithelium

Structure
Single layer of cube shaped cells





Слайд 9

same level

Simple columnar epithelium

Structure
Elongated layer of cell with nuclei at same level



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stratified, but aren’t.

Pseudostratified epithelium

Structure
Irregularly shaped cell with nuclei at different level-appear stratified, but aren’t.




Слайд 12

squamous at top)

Stratified squamous epithelium

Structure
Many layers (usually cubodial/columnar at bottom and squamous at top)




Слайд 14

a tubeAlveolar-shaped like flasks or sacsTubuloalveolar: has both tubes and sacs in gland

Shape of exocrine glands

Branching
Simple, single, unbranched duct
Compound-branched
Shape
Tubular or alveolar
Tubular-shaped like a tube
Alveolar-shaped like flasks or sacs
Tubuloalveolar: has both tubes and sacs in gland


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