摘要
用58例人类胚胎胸腺标本研究了胸腺的组织发生过程。结果显示6～8周时胸腺呈不分叶状,无皮质、髓质之分。8周时腺实质内出现淋巴细胞。11周时出现胸腺小叶;皮质、髓质分界明显。胸腺小体最早见于13周、17～18周时于髓质深部已相当多见。19周后在髓质深部出现呈融合状态的胸腺小体。20周后腺实质中,尤其是在小梁血管周围,出现大量嗜酸性粒细胞。
The histogenesis of human embryonic thymus was studied with58 embryonic thymuses.The results are as follows:from 6 to 8 weeks of gesta-tion the thymus is unlobulated and has no differentiation of cortex and medulla。At 8 weeks lymphocytes are found in the thymus.At 11 weeks the thymusis lobulated and cortex and medulla could be distinguished.The Hassall′s corpuscles begin to appear at 13 weeks and are found in numbers at the deepportion of the medulla by 17-18 weeks.The aggragated.Hassall′s corpusclescan be found in the medulla after 19 weeks.There are numerous acidophilicgranulocytes within the thymus,especially near the blood vessels in trabe-culae after 20 weeks.
出处
《山东医科大学学报》
1990年第4期28-32,31-32,共5页
Acta Academiae Medicinae Shandong
关键词
胚胎
睾丸
人
组织学
Embryo
Thymus gland
Men
Histology
