The Migratory Neural Crest Cells

question 65

Multiple Choice

The migratory neural crest cells

• A) form most of the central nervous system.
• B) serve as precursor cells for the notochord.
• C) form the spinal cord in the frog.
• D) form neural and non-neural structures in the periphery.
• E) form the lining of the lungs and of the digestive tract.

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Definitions:

Mucus

A slimy substance produced by mucous membranes and glands for lubrication and protection of various internal body surfaces.

Upper Respiratory Tract

Nasal cavity, pharynx, and associated structures.

Pharynx

The muscular tube that forms part of the digestive and respiratory systems, connecting the mouth and nasal cavity to the esophagus and larynx.

Nasal Septum

Bony partition that separates the nasal cavity into left and right parts; composed of the vomer, the perpendicular plate of the ethmoid, and hyaline cartilage.