Question

In: Biology

Which of the following is are derivatives of neural crest cells? Group of answer choices (select...

Which of the following is are derivatives of neural crest cells?

Group of answer choices (select all that apply!)

facial cartilage

ventral root ganglia

enteric ganglia

rib cartilage

neurons

cranial sensory ganglia

dorsal root ganglia

sympathetic ganglia

cardiac ganglia

Solutions

Expert Solution

The following are the derivatives of neural crest cells:

facial cartilage

ventral root ganglia

enteric ganglia

cranial sensory ganglia

dorsal root ganglia

sympathetic ganglia

cardiac ganglia

Neural crest cells are a temporary group of cells unique to vertebrates that arise from the embryonic ectoderm germ layer, and in turn form various cell lineages.

These cells originating from different positions along the anterior - posterior axis develop into various tissues. These regions of neural crest can be divided into four main functional domains, which include the cranial neural crest, trunk neural crest, vagal and sacral neural crest and caridiac neural crest.

Cranial neural crest migrates dorsolaterally to form the craniaomesenchyme that differentiates into various cranial ganglia and craniofacial cartilages and bones.

Trunk neural crest

They gives rise to two populations of cells. One group of cells fated to became melanocytes migrates dorsolaterally into the ectoderm towards the ventral midline. A second group of cells migrates ventrolaterally through the anterior portion of each sclerotome. The cells that stay in the sclerotome form the dorsal root ganglia, whereas those that continue more ventrally form the sympathetic ganglia, adrenal medulla and the nerves surrounding aorta.

Vagal and sacral neural crest

The vagal and sacral neural crest cells develop into the ganglia of the enteric nervous system and the parasympathetic ganglia.

Cardiac neural crest

The cardiac neural crest develops into melanocytes, cartilage, connective tissue and neurons of some pharyngeal arches.


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