This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Anatomy
[{'content': 'Ribs are developed from ? \nSelect and explain. \nA. Cloaca, B. Sclerotome, C. Endodermal cloaca, D. Primitive gut', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Ribs are derived from lateral cells of sclerotome.Derivatives of paraxial mesoderm Paraaxial mesoderm is organized into somites which in turn gives rise toi) Sclerotomes : Form axial skeleton including veebrae, ribs and pas of neurocranium.ii) Myotomes : Form all voluntary (skeletal) muscles of head, trunk and limbs.iii) Dermatomes : Form dermis of skin, especially over dorsal regions.', 'role': 'assistant'}]