Since ETPs showed the potential to give rise to myeloid cell types, the team also asked whether some of the myeloid cells in the thymus normally arise from ETPs. 鑒于早期胸腺細胞表現出具有生成髓系細胞的能力，小組提出，是不是胸腺內的一些髓細胞通常來(lái)源于這些細胞。
The thymus has no obvious demarcation into an outer cortex and inner cortex.Lymphocytes and the macrophages are dispersed in the thymus parenchyma equably. 牙鲆胸腺沒(méi)有明顯的外區和內區之分，胸腺細胞和巨噬細胞比較均勻地分布于整個(gè)組織中，未能觀(guān)察到胸腺小體。
