Connective Tissues Flashcards
What is the function of the extracellular matrix?
Fill the spaces between cells, binding them together with tissues
What are the 3 components of connective tissue?
Ground substance
Fibres
Cells
What components of connective tissue make up the extracellular matrix?
Ground substance and fibres
What is ground substance?
Clear, semi-solid gel that has a water binding ability
What is ground substance composed of?
Glycoproteins and complex carbohydrates
What are 3 functions of ground substance?
- Provides tissue volume
- Provides biochemical support
- Supports intercellular exchange of substances
What are the 2 fibre types?
Collagen and elastin
What do fibres provide?
Structural support and tensile strength
What is the strongest and most abundant fibre type?
Collagen
What does collagen provide?
Tensile strength
What do elastin fibres provide?
Stretch and recoil abilities
What can be said about the structure of elastic fibres?
They are long and branched fibres
What are the 3 types of collagen fibres and where are they found?
Type I : found in skin and bone
Type II : found in cartilage
Type III : found in highly cellular organs
What are elastin fibres secreted by?
Fibroblasts
What do fibroblasts secrete?
Elastin fibres