Constituents of Connective Tissues 1. Cells A. Blasts B. Cytes C. Clasts 2. Extracellular Matrix A. Ground Substance B. Fibers I. Collagenous II. Elastic III. Reticular 15
16
Connective Tissue Loose connective tissue Blood Collagenous fiber Plasma 55 m 120 m White blood cells Elastic fiber Red blood cells Cartilage Fibrous connective tissue 30 m 100 m Chondrocytes Chondroitin sulfate Nuclei Adipose tissue Central canal Fat droplets Osteon 150 m 700 m Bone 17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
Muscle Tissue Skeletal muscle Nuclei Muscle fiber Sarcomere 100 m Smooth muscle Nucleus Muscle fibers Cardiac muscle 25 m Nucleus Intercalated disk 50 m 34
35
36
37
38
Nervous Tissue Neurons Glia 15 m Neuron: Dendrites Cell body Axons of neurons 40 m Axon Blood vessel (Fluorescent LM) (Confocal LM) 39