Embroyonic Disc Amniotic Cavity Yolk Sac

Embroyonic Disc Amniotic Cavity Yolk Sac

The embryonic disc with amniotic cavity and yolk sac represents the early post-implantation stage, where the bilaminar disc of epiblast and hypoblast forms, then gastrulation creates a trilaminar disc with…
Cardiac Cycle vs Heart Sounds

Cardiac Cycle vs Heart Sounds

A comparison of the cardiac cycle and heart sounds visually links mechanical events in the heart to what is heard through a stethoscope. The diagram aligns phases such as atrial…