Human vs Guinea Pig Placenta: Trophoblast Subtypes and Molecular Markers #1589858 (License: Personal Use)

This scientific diagram contrasts placental architecture between humans and guinea pigs, highlighting nine distinct trophoblast subtypes-including villous syncytiotrophoblast (STB), cytotrophoblast (CTB), fetoplacental endothelium, cell columns, and multiple invasive forms (interstitial, intramural, intraarterial, perivascular). Each subtype is annotated with its characteristic molecular markers such as eNOS, KAL/B2R, ANG-(1-7), ACE2, and VEGF/KDR, illustrating conserved and divergent regulatory pathways across species.

Used in reproductive biology, developmental physiology, or comparative placental research contexts-typically on academic or medical education webpages targeting researchers, clinicians, or graduate students studying trophoblast invasion, preeclampsia models, or species-specific placental adaptations.