GESTATION Flashcards
the first trimester is how many weeks?
embryonic period-10 weeks
fetal period-11-16 weeks
second trimester is how many weeks?
17-28 weeks
third trimester is how many weeks?
29-40 weeks
absence of entire limb
amelia
absence of part of a limb
meromelia
absence of digits
phocomelia
lobster claw deformity
adactyly
extra digits
polydactyly
fusion of digits
syndactyly
types of genes that affect the fetal growth and differentiation?
types of actions?
structural and regulatory
structural
- housekeeping
- cell typing
- cell specific
reg
-bind to DNA and regulate sequences of expression of other structural genes
*autocrine, paracrine, endocrine
what are the local growth disturbances?
anomalies
deformities
dysplasia and dysgenic changes
malformations
what is this local growth disturbance?
quantitative or positional deviations from normal
anomalies
what is this local growth disturbance?
changes in form related to mechanical pressure
deformities
what is this local growth disturbance?
related to disturbed histogenesis of affected organs
dysplasia and dysgenic changes
what is this local growth disturbance?
developmental changes presenting structure that are not present in normal individuals
malformations