The development of the primary vascular reticulum in the spleen of human fetuses (38- to 57-mm crown-rump length).
D001485:Basement Membrane; D001808:Blood Vessels / Q000166:cytology / Q000196:embryology*; D003239:Connective Tissue Cells; D003593:Cytoplasm; D004721:Endoplasmic Reticulum; D005260:Female; D005865:Gestational Age; D006801:Humans; D011247:Pregnancy; D012270:Ribosomes; D013154:Spleen / Q000098:blood supply / Q000196:embryology* / Q000502:physiology