Connective tissue 2

AP (more efficient)

mast cells

Store and release histamine, part of allergic reactions

White Blood Cells (WBC)

reside in blood migrate into tissue during infection

2 basic components of connective tissues

cells and extracellular material (matrix)

Fiberblasts

large, flat, migrating cells, with branching processes: secrete ECM

Chondroblasts

make cartilage, mature into chondroyctes

Osteoblasts

make bone, mature into osteoctyes

Adipoctyes

Stores fats (triglycerides)

Macrophages

develop from monocytes phagocytotic cells that take in and digest bacteria and debris

Plasma White Cells

develop from B lymphocytes, make antibodies, important for immune response

What are the 2 parts of extracellular matrix

Ground substance and fibers

Ground substance

occupies the space between the cells and fibers of connective tissue

What does ground substance consist of?

largely of proteoglycans and hyaluronic acid, thus traps water and aid diffusion

Collagen

Strong and flexible, occurs in bundles. Most common types of fiber

Elastic

strong but stretchy, made of elastin and fibrillin

Reticular

very fine collagen strands