Which cells form cartilage, bone, and connective tissue of the pharyngeal arches?

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Study for the Pharyngeal Apparatus Test. Dive into multiple choice questions with detailed explanations and hints. Prepare effectively for your exam!

Multiple Choice

Which cells form cartilage, bone, and connective tissue of the pharyngeal arches?

Explanation:
Neural crest cells are responsible for forming cartilage, bone, and connective tissue in the pharyngeal arches. These cells originate at the border of the developing neural tube, migrate into the arches, and differentiate into ectomesenchyme that builds the skeletal elements and surrounding connective tissues of the face and neck. The arches’ internal lining comes from endoderm and their outer covering from ectoderm, while paraxial mesoderm mainly contributes to muscles and some other structures, but the cartilage and bone of the arches originate predominantly from neural crest cells.

Neural crest cells are responsible for forming cartilage, bone, and connective tissue in the pharyngeal arches. These cells originate at the border of the developing neural tube, migrate into the arches, and differentiate into ectomesenchyme that builds the skeletal elements and surrounding connective tissues of the face and neck. The arches’ internal lining comes from endoderm and their outer covering from ectoderm, while paraxial mesoderm mainly contributes to muscles and some other structures, but the cartilage and bone of the arches originate predominantly from neural crest cells.

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