fetal erythropoeiesisYolk sac (3–8 weeks)
Liver (6 weeks–birth)
Spleen (10–28 weeks)
Bone marrow (18 weeks to adult) hematologyembryology Jul 1, 2020, 8:25 AM HirotoShishido
what embryonic structures give rise to SVC/IVCRight common cardinal vein and right anterior cardinal vein→ SVC
Posterior, subcardinal, and supracardinal veins→ IVC cardiologyembryology Jun 27, 2020, 5:12 AM HirotoShishido
Pierre Robin sequencemicrognathia, glossoptosis, cleft palate, airway obstruction(☆improve with prone position)
☆A sequence occurs when a single developmental defect causes a cascade of additional malformations. embryologypediatricsUWorld May 13, 2020, 10:15 PM HirotoShishido
hypospadias, epispadias
pathogenesishypo→ failure of urogenital folds(penile urethra, labia minora) to fuse
epi→ faulty positioning of genital tubercle (glans penis, glans clitoris)