三涅民驾种谓 C/2 COLLEGE OF MEDICINE THIRD MIILITARY MEDICAL UNIVERSITY 1.2 Cell and extracellular matrix Scanning electron micrograph of fibroblasts in connective tissue .o um of their volume is extracellular space, which is large/ r issues are not made up solely of cells. A substantial pa filled by an intricate network of macromolecules constituting the extracellular matrixTHIRD MIILITARY MEDICAL UNIVERSITY COLLEGE OF MEDICINE THIRD MIILITARY MEDICAL UNIVERSITY COLLEGE OF MEDICINE 1.2 Cell and Extracellular Matrix Scanning electron micrograph of fibroblasts in connective tissue. Tissues are not made up solely of cells. A substantial part of their volume is extracellular space, which is largely filled by an intricate network of macromolecules constituting the extracellular matrix