| Primary Cell of Mesenchymal connective tissue | Undifferentiated mesenchymal cells |
| Primary Fiber of Mesenchymal connective tissue | Collagen fibers |
| Occurence of Mesenchymal connective tissue | Developing organs in embryo |
| Primary Cell of Mucous connective tissue | Fibroblasts |
| Primary Fiber of Mucous connective tissue | Collagen fibers |
| Occurence of Mucous connective tissue | Umbilical cord and dental pulp |
| Function of Mucous connective tissue | Fibrogelatinous support |
| Primary Cell of Areloar connective tissue | Fibroblasts |
| Primary Fiber of Areloar connective tissue | Collagen fibers |
| Occurence of Areloar connective tissue | All over the body |
| Function of Areloar connective tissue | Mechanical support, repair and protection |
| Primary Cell of Reticular connective tissue | Reticular cells |
| Primary Fiber of Reticular connective tissue | Reticular fibers |
| Occurence of Reticular connective tissue | BM, liver, lymphoid organs |
| Function of Reticular connective tissue | Framework or support |
| Primary Cell of Adipose connective tissue | Adipose cells |
| Primary Fiber of Adipose connective tissue | Reticular and collagen fibers |
| Occurence of Adipose connective tissue | Subcutaneous, omentum, mesentery, axillary, inguinal |
| Function of Adipose connective tissue | Synthesis and storage of fat, cushioning, insulation, endocrine |
| Primary Cell of Dense regular connective tissue | Fibroblasts |
| Primary Fiber of Dense regular connective tissue | Collagen fibers |
| Occurence of Dense regular connective tissue | Tendons, ligaments, aponeurosis |
| Function of Dense regular connective tissue | Muscle to bone attachment, bone to bone attachment, bone to muscle attachment |
| Primary Cell of Dense irregular connective tissue | Fibroblasts |
| Primary Fiber of Dense irregular connective tissue | Collagen fibers |
| Occurence of Dense irregular connective tissue | Sheaths, tendons, BV, nerves, capsules, septae, trabeculae |
| Function of Dense irregular connective tissue | Withstand tension, provide support |
| Primary Cell of Dense elastic connective tissue | Fibroblasts |
| Primary Fiber of Dense elastic connective tissue | Elastic fibers |
| Occurence of Dense elastic connective tissue | Ligamentum nuchae and flava, styloid ligament, large arteries |
| Function of Dense elastic connective tissue | Mechanical support, flexibility |
