ANSC 452 Lecture 6: ANSC452 WEEK6
15 Nov 2020
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4 neviolation neural tube/ notochord formation to som togenesis + forms somites. 3 layers: endoderm, mesoderm, ectoderm bendoderm internal gitract cells move in and to mesoderm become somites to ectoderm & skin, hair, brain, spinal cord. Growish factors based on movement emt, signaling. Legfa embryo de ad w/o fgf a by day a 4 in mice. 4 fg 58 primitive streari produces fgf8. 24-48 hours after mesoderm induction; creates noto chord and neural toe. Forms precursors to the spinal cord so the ridge is more pronounced is the ridge builds on each side and fold into each other to separate layers. 4 the noto chord forms outside of the neural tube. Neural tube must be used for proper development. Fallc (folated, choline, vitamin b12 important for for dna synthesis & the thylation of dna. Las low all cycling can mess with timing. Meso dermal cells condense into blocks hcuboidal alls on the apical surface are somito colle, which are fluid-rolled.
