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This fetal pig snout contains excellent examples of mesenchyme. It is an early form of connective tissue found in embryos.
Mesenchyme is composed mainly of ground substance with few cells or fibers. Mesenchymal cells differentiate into other cell types such as fibroblasts, fat, cartilage and bone.
Mesenchyme is found between the differentiating tissues.
Mesenchymal Cells - stellate or spindle-shaped (fusiform) cells with round to oval nuclei. Easy to identify when three or more processes are visible.