The passage of blood, or any of its formed elements, through the intact walls of blood vessel s. SYN: migration (2). [G. dia, through, + pedesis, a leaping]
* * *
di·a·pe·de·sis .dī-ə-pə-'dē-səs n, pl -de·ses -.sēz the passage of blood cells through capillary walls into the tissues called also emigration
di·a·pe·det·ic -'det-ik adj
* * *
n.
migration of cells through the walls of blood capillaries into the tissue spaces. Diapedesis is an important part of the reaction of tissues to injury (see inflammation).
* * *
di·a·pe·de·sis (di″ə-pə-deґsis) [dia- + Gr. pēdan to leap] the outward passage through intact vessel walls of cellular elements of the blood (erythrocytes or leukocytes). Called also migration and transmigration. diapedetic adj
Diapedesis of leukocytes.
Medical dictionary. 2011.