diapedesis

/dahy-uh-pi-dee-sis/US // ˌdaɪ ə pɪˈdi sɪs //UK // (ˌdaɪəpəˈdiːsɪs) //

吐痰,吐血,吐真剂,吐纳

Definitions

n.名词 noun

1
Physiology.
- : the passage of blood cells, especially leukocytes, through the unruptured walls of the capillaries into the tissues.

To the number of these there is possibly an addition by the immigration from below (diapedesis) of leucocytes.
It is supposed that in many such cases the hemorrhage is due to diapedesis, and not to rupture of a blood-vessel (rhexis).
Henry ab Heer records the case of a man who not only laboured under diapedesis, but small worms accompanied the bloody secretion.
For five successive Fridays the same phenomenon appeared, when a confirmed diapedesis appeared.
The theory of blood pressure may apply to diapedesis accompanying the inflammatory process.