Anatomy and Cell Biology 3319 Lecture Notes - Lecture 3: Spina Bifida, Neural Crest, Neural Groove

• School: Western University
• Department: Anatomy and Cell Biology
• Course: Anatomy and Cell Biology 3319
• Professor: Michele Barbeau

Document Summary

Neural crest develops between the neural tube and the ectoderm but later goes somewhere else. Over time the fold becomes even more pronounced and it closes leaving a neural tube: cells breaking off and making a separate clump, the neural tube is filled with csf. Closure of the neural tube from rostral to caudal: until entire tube is closed in. Incomplete development and failure of rostral part of the neural tube to close: improper closure at the rostral end, blind, deaf, rudimentary brain stem sufficient to support life but cognitive processing is lacking. Summary: the neural plate forms from the ectoderm. The neural crest is on either side of the neural plate. Neural crest cells outside are forming the sensory ganglia: the sensory input from the rest of the body, with receptors out in the skin and a cell body outside the neural tube. The rest of the axons go into the neural tube.