Connective Tissue and cartilage chapter 4 Flashcards
Connective tissue function
Connects tissues and organs
Provides structure
Stores energy
Transport materials(blood)
Have no contact with enviroment
Connective tissue location
It forms all ligaments and tendons.
It’s also found throughout the body in fibrous membrane coverings.
Connective tissue characteristics
Specialized cells( adipocytes, erythrocytes, thrombocytes, osteocytes, leukocytes, chondrocytes, fibrocytes.
Solid extracellular protein fibers- elastic fibers, collagen fibers, and reticular fibers.
Fluid extracellular ground substance- gels, crystals, or semi solids.
Erythrocytes
Red blood cells
Leukocytes
White blood cells
Thrombocytes
Platelets
Fibroblasts
Found in all connective tissue proper.
Secretes proteins and hyalurinan(cellular cement)
Mast cells
Stimulate inflammation after injury or infection.
Release histamine and heparin.
Basophils are mast cells carried by blood.
Adipocytes
Fat cells
Each cell stores a single, large fat droplet,
Microphages
Phagocytic blood cells
Lymphocytes
Specialized immune cells
Osteocytes
Bone cells
Chondrocytes
Cartilage cells
Collagen fibers
Most common fibers in connective tissue proper
Long, straight, and unbranched
Strong and flexible
Resist force in one direction
Ex: tendons and ligaments
Reticular fibers
Network of interwoven fibers(stroma)
Strong and flexible
Resist force in many directions
Stabilize functional cells and structures
Ex: sheats around organs
Elastic fibers
Contain elastin
Branched and wavy
Return to original length after stretching
Ex: elastic ligaments of vertebrae
Ground substance
Fluid to make sure the fibers stay in place
Is clear, colorless and viscous
Fills spaces between cells and slows pathogen movement.