General Embryology Flashcards
What makes up the first 8 weeks of gestation? (2)
Preimplantation and embryonic period
Each craniofacial structure has a….?
Primordium
After fertilization of the zygote mitosis leads to what?
Blastocyst
What structure implants into the uterus?
blastocyst
What is critical for craniofacial development?
BMP (Bone Morphogenic Protein)
HOX genes are the blue print for?
Develop limbs and spine
Msx Genes genes are the blue print for?
differentiation and proliferation
Shh (sonic hedgehog) genes are the blue print for?
induction of facial primordium
Dlx genes genes are the blue print for?
lateral border of the neural plate
What are Ca dependent adhesion molecules?
Cadherins
Neurectoderm progenitors express
N-CAM
Skin Ectoderm progen
L-CAM
After the zygote cleaves a few times it is called
morula
How long does a blastocyst endure for?
until 3 distinct germ layers have formed.
What things form during the embryonic period? (3)
Pharyngeal arches
Somite development
Face development