Junctional Permeability and Its Consequences

摘要: For the last 100 years attention has been focused on cell as unit of life, and indeed this important concept formed basis for much our understanding structure function in biological systems. Although is meaningful accurate prokaryotes other unicellular organisms, a highly developed multicellular organism must lose its independence milieu composite tissues. We now accept that organisms are populations interacting interdependent cells with properties which cannot be assigned specifically to individual units but instead collectively all different together developing embryo or adult tissue.