Figure 1.

Embryonic origins of the different types of connective tissues. The different types of connective tissues, specialized (bone and cartilage), dense (tendon) and irregular connective tissues are depicted in three mouse E14.5 embryos. The color code corresponds to the embryological origins of the different types of connective tissues, which differ depending on their location in the body. Connective tissues of the head derive from neural crest cells (green), while trunk connective tissues arise from the somites (blue) and limb connective tissues arise from the lateral plate mesoderm (pink).