Vertebrate Body plan Flashcards
What is phocomelia?
no development of the proximal bones
What is this tissue, a precursor to the spine, derived from this layer
Notochord is derived from the Mesoderm
Birth Defect
congenital malformation, a physical anomaly
Which way does dorsal face
The sky
Congenital Disorder
condition at and before birth. usually develops within the first month of life
Critical Period
when shit is extra sensitive, vital for development
what transforms the embryo from a flat disc to a three-dimensional vertebrate body form? Why?
both occur due to formation of structures for further development
Teratology
The study of weird ass development
Teratogen
Anything that causes a birth defect
Formation of the Notochord
Folds up hot dog style and closes, hollow to solid. This will turn into a neural tube.
Why does this differentiating tissue into vertebrae, muscles, and body wall form in pairs? What is it derived from?
Somites form in pairs for symmetry. Derived via the paraxial mesoderm
When does embryonic folding occur?
3/4 week period
