| 11. | The heart derives from splanchnopleuric mesenchyme in the neural plate which forms the cardiogenic region.
|
| 12. | Each of these is surrounded by mesenchyme.
|
| 13. | From splanchnopleuric mesenchyme, the cardiogenic region develops cranially and laterally to the neural plate.
|
| 14. | Several different cells from the mesenchyme can give rise to sex-cord or stromal tumors.
|
| 15. | In some colonial cnidarians, the mesenchyme is perforated by gastrovascular channels continuous among colony members.
|
| 16. | Twist, a bHLH transcription factor, is required for mesenchyme differentiation of the pharyngeal arch structures.
|
| 17. | It is suggested pericytes and smooth muscle cells come from neural crest cells and the surrounding mesenchyme.
|
| 18. | Once in the blastocoel, the mesenchyme cells extend and contract long, thin processes called filopodia.
|
| 19. | This duct is formed when the ectoderm thickens into a cord and sinks into the underlying mesenchyme.
|
| 20. | First the epithelium signals the mesenchyme, then the mesenchyme induces the epithelial sheet to bud into it.
|
