Types of Tissue
•Epithelial Tissue•Connective Tissue•Muscle Tissue•Nervous Tissue
1
Properties of Epithelia
•Cellularity•Polarity•Avascularity•Regeneration
2
Cuboidalepithelium
Simple columnarepithelium
Simple squamousepithelium
Pseudostratifiedcolumnarepithelium
Stratified squamousepithelium
Epithelial Tissue
3
Apical surface
Basal surface
Basal lamina
40
m
Polarity of epithelia
4
5
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Squamous Cuboidal Columnar
Simple
(a) Classes of epithelium
Pseudostratifiedcolumnar
Stratified
(b) Cell shapes
6
7
8
9
10
11
12
13
14
15
Constituents of Connective Tissues
1. CellsA. BlastsB. CytesC. Clasts
2. Extracellular MatrixA. Ground SubstanceB. Fibers
I. CollagenousII. ElasticIII. Reticular
16
Blood
Connective Tissue
Plasma
Whiteblood cells
55
m
Red blood cellsCartilage
Chondrocytes
Chondroitin sulfate
10
0
m
Adipose tissue
Fat droplets
15
0
m
Bone
Centralcanal
Osteon
70
0
m
Nuclei
Fibrous connective tissue
Elastic fiber
30
m
12
0
m
Collagenous fiber
Loose connective tissue
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
Muscle Tissue
Skeletal muscleNuclei
Musclefiber
Sarcomere
100 m
Smooth muscle Cardiac muscle
Nucleus Muscle fibers 25 m Nucleus Intercalated disk 50 m
34
35
36
37
38
Nervous Tissue
Neurons
Neuron:Dendrites
Cell body
Axon
(Fluorescent LM)
40
m
Glia Glia
Axons ofneurons
Bloodvessel
(Confocal LM)
15 m
39
40
41
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