3 characteristic of the connective tissue
common origin:all connective tissues arise from mesenchyme (an embryotic tissue)
Degrees of vascularity: connective tissues run the gamut vascularity. Cartillage are avascular
Extracellular matrix: all other primary tissues are composed mainly of cells, but connective tissue are largely nonliving.
extracellular matrix: separates, often widely , the living cells of the tissue.