Histogenesis of the spleen in the human embryo in O'Rahilly's stages 17 to 23.
A histological study of the spleen in 30 human embryos in O'Rahilly's stages 17-23 revealed that the splenic anlage is composed of mesenchymal elements. Furthermore, the spleen is formed by a cytoreticulum containing a number of cells similar in appearance to lymphoid elements. No evidence of a celomocapsular separation is seen in this period.
Merida-Velasco
J A
JA
Department of Morphological Sciences, University of Granada.
Sanchez-Montesinos
I
I
Espin-Ferra
J
J
Garcia-Garcia
J D
JD
D003593:Cytoplasm / Q000502:physiology; D005260:Female; D005865:Gestational Age; D006801:Humans; D011247:Pregnancy; D013154:Spleen / Q000033:anatomy & histology / Q000196:embryology*