Abstract
Electron microscopical examination of thin sections of guinea pig and rabbit bone marrow indicates that nuclei of their normoblasts undergo constriction during their expulsion. Late erythroblasts in bone marrow of adult rabbits and guinea pigs were often seen surrounded by cytoplasmic protrusions of macrophages. No such contact was observed between macrophages and erythroblasts that were expelling their nuclei in the lumen of blood sinuses of rabbit bone marrow. It is concluded that macrophages are not necessary for nuclear expulsion.
| Original language | English |
|---|---|
| Pages (from-to) | 123-126 |
| Number of pages | 4 |
| Journal | Anatomical Record |
| Volume | 173 |
| Issue number | 1 |
| DOIs | |
| State | Published - May 1972 |
| Externally published | Yes |