?

Neuroscience

Free Version

Upgrade subject to access all content

Easy

Neural Crest as a Fourth Germ Layer

NEURO-2CSYRN

Sometimes neural crest is called a fourth germ layer along with endoderm, mesoderm, and ectoderm.

Which of the following neural crest features could warrant such a designation?

A

Neural crest originates at the dorsal most part of the neural tube where both cells of the overlying epidermis and underlying neural plate contribute to its formation.

B

Neural crest gives rise to a variety of cell types and tissues, including melanocytes of the skin and neural ganglion cells of the gut.

C

Neural cells derived from neural crest form ganglia associated with organs that have distinct developmental origins, e.g. mesoderm derived heart and endoderm derived gut.