Flashcards in Embryology revision Deck (9):
what are the 4 stages of embryological development in general, and list the time period for each stage.
1. Conception (1 cell)
2. 3 germ layers 1-3 weeks
3. embryo 3-10weeks
4. Fetus 10-40weeks
at what stage during gestation do most surgical abnormalities arise?
during the embryo phase from 3-10weeks
from which germ layer is the neural tube derived?
when do the testes normally descend in a boy?
about 7 months during gestation
from which embryological structure does the epididymis, vas deferens and seminal vesicle arise?
from which embryological structure does the uterus, fallopian tubes and upper vagina?
which key gene is required for testicular development?
SRY gene on the Y chromosome
at what embryological stage are female and male embryos have the same undifferentiated external genitalia?
up until 8 weeks gestation