Neural Induction Flashcards
what is neural induction?
the process by which embryonic cells in the ectoderm make a decision to acquire a neural fate rather than give rise to other structures such as epidermis or mesoderm
what is gastrulation?
an early developmental process in which an embryo transforms from a one-dimensional layer of epithelial cells to a multidimensional structure called the gastrula
Which part of the
embryo specifies
cell fate?
Dorsal lip
what is epiboly?
the coordinated movement of cells to cover a larger surface during embryonic development
in early zebrafish development, what is epiboly responsible for?
thinning and spreading of the blastoderm over the yolk cell
what is Convergence?
is a cellular movement that involves the coming together or migration of cells from different locations towards a common point
what is the importance of convergence?
formation of tissues and organs during embryonic development
what is Extension?
the lengthening or elongation of cell populations or tissues during embryonic development
what is Neurulation?
a process during embryonic development in which the neural tube is formed
what is neural tube?
a hollow structure that gives rise to the central nervous system, including the brain and spinal cord
when does the neural tube appears in human embryo?
during 4th week after fertilisation
where is the CNS derived from?
the ectoderm layer
where is the PNS derived from?
the neural crest
what becomes the bone and muscle in human embryo?
the somites
what are neuropores?
open ends of the neural tube. closes before the end of 4th week
