title: [1st rudiment of the foramem primum in the human embryo (Pu embryo, Horizon XIV].
mesh_terms: D006321:Heart / Q000033:anatomy & histology / Q000196:embryology*; D006801:Humans; D008961:Models, Structural
vernacular_title: Primer esbozo del foramen primum en el embrión humano (embrión Pu, horizonte XI.