Types and Function of Connective Tissue

description of various types of connective tissue in human body. :)

1. TYPES OF CONNECTIVE TISSUE Connective Tissue is the most abundant, widespread, and varied of all tissue types in the body. It also has the widest variety of functions. By – Ms. Sayali Utale.

2. There are 3 types of connective tissue Embryonic connective tissue Connective tissue proper Specialized connective tissue

3. Embryonic connective tissue Gives rise to different connective tissues of our body Mostly derived from mesoderm 2 Types – Mesenchyme Mucous connective tissue Mesenchyme Mucous connective tissue

4. Mesenchyme Cells- small, spindle shaped, form network Ground substance- viscous Fibres - few, reticular Eg .- in embryo

5. Mucous connective tissue Cells- small, spindle shaped fibroblast like Ground substance- viscous Fibres - whispy collagen Eg .- in umbilical cord

6. Connective tissue proper 2 types- Loose connective tissue Dense connective tissue Irregular Regular

7. Loose connective tissue- Areolar tissue Cells- abundant, different types Ground substance- viscous, abundant Fibres - sparse, mainly collagen Eg .- primary site of defence Beneath epithelia- lamina propria , superficial fascia

8. Dense irregular connective tissue Cells- sparse, mainly fibroblasts Ground substance- less Fibres - abundant, mainly collagen as bundles, in different directions Eg .- provides strength Submucosa of hollow organs, reticular layer of dermis

9. Dense regular connective tissue Cells- sparse, mainly fibroblasts between fibre bundles Ground substance- less Fibres - abundant, mainly collagen as bundles, running parallel Eg .- maximum strength Tendon, ligaments, aponeurosis

10. Specialized connective tissue Cartilage Bone Adipose tissue Blood

11. Cartilage Cells- chondrocytes Ground substance- chondroitin sulfate The cartilage fibrous sheath is called the perichondrium Types- Elastic cartilage Hyaline cartilage Fibrous cartilage 1. 2. 3.

12. Bone Cells- osteoblasts, osteocytes bone lining cells, osteoclats Ground substance- minerals

13. Adipose tissue Cells- adipocytes closely packed Eg .- under skin, around kidneys eyeballs, in peritoneum like greater omentum Functions- Energy storage Cushioning Heat production in children

14. Adipose tissue 2 types- White- for energy storage and cushioning, in adults Unilocular , large cells

15. Adipose tissue Brown- for heat production , in newborns Multilocular , small cells

16. Blood Cells- erythrocytes, leukocytes Ground substance- plasma

17. Functions of Connective tissue Fibres of connective tissue provide strength, elasticity and flexibility to the tissue. Areolar tissue acts as a supporting and packing tissue between organs lying in the body cavity. It helps in repair of tissue after an injury. Adipose tissue serve as a fat reservoir and form shock-absorbing cushions around the eyeballs and kidneys. It acts as an insulator. It reduce heat loss from the body.

18. Tendons joint muscle to bone while ligaments connect bone to bone. Cartilage smothens surface at joint and thus prevent the wear and tear of bones due to friction. Bone is the structural framework of the body and gives protection to the organs. Bone provides surface attachment of muscle and help in movements and serves as storage site of calcium and phosphate. Blood transports oxygen and nutrients to the lungs and tissues, forms clots to prevent blood loss and carries cells and antibodies that fight infections.

19. THANK YOUU!