Biology 3338A Lecture Notes - Dermis, Cadherin, Myod
3 Apr 2014
School
Department
Course
Professor
Document Summary
1: top right: chick embyo going through gastrulation. Shifts and is expressed where the the bounday fissire occurs: hairy expression is periodic, recap, hairy xontrols periodicity, airy and eph on posterior. 4: lateral tyoe of mesoderm is mesechyma cells (porly differntiated migrating mesoderm cells, during somitiogeneiss, cells form a peithleal layer. 6: somites are made up of 3 cells tpes- derma, myo, sclero, give rise to diffet strjhctjres, overlieing ecto has bmp and wnt. Bmp and wnt can signal down to somite: chord has shh signal to somite, dermo myo ususlaly combined. 7: go back t bein g mesenchmal cells, form segemented areas changes from eip to mesnchymal and migrate away, dermyo give rise to dermis and muscles of back. 8: muscle formation needs wnt to urn on muscle specific genes, as the cells differntaiting into mucels, needs proper cadherins.
