Ribs develop from ?
Ribs which are attached to veebra posteriorly is derived from paraxial mesenchyme which is derived from mesoderm. Mesoderm - Paraxial Mesoderm, Intermediate Mesoderm, Lateral plate Mesoderm Paraxial mesoderem forms somites -sclerotome, myotome and dermatome. Sclerotome forms veebra and ribs. Myotome forms skeletal muscles. Dermatomeforms dermis(skin)
Endothoracic fascia
Para axial mesenchyme
Deep intercostal fascia
Superficial intercostal fascia
General Embryology 2