PRENATAL DEV Flashcards
this is related to the switching on and off of genes that previously were not operating
differentiation
what is this age during the prenatal period?
calculated from the 1st day of the last menstrual period (LMP) and used for clinical purposes, 40 weeks
calculated from the date of supposed/known fertilization and used for anatomic purpose, 38 weeks
gestational age
anatomic age
bows before tows at what weeks?
6/7 weeks
during what period of development can mechanical injuries causing amniotic ruptures produce limb amputations?
pre embryonal
embryonal
fetal
at anytime during gestation
embryonal
initial growth and patterning of the limbs occurs during what weeks?
4-8 weeks
limb buds appear at how many weeks? upper limbs and lower limbs?
much of the basic structures of limbs are established by how many weeks?
4 weeks, 4-7 weeks, 6-8 weeks
8 weeks
absence of entire limbs
amelia
absence of part of a limb
meromelia
absence of digits
phocomelia
lobster claw deformity
adactyly
extra digits?
fusion digits?
polydactyly
syndactyly
a patient has phocomelia in girls foot; what week during prenatal growth would affect the lower limb like this?
7th week
patterning of initial outgrowth of the limbs occur during?
second week of development
third week of development
weeks 4-8 of development
last trimester of development
weeks 4-8 of development
fetus with excessive glucose resulting in accumulation of fat and visceromegaly of heart and liver occurs during what trimester?
3rd trimester
which 2 chemical teratogens can cause TEV?
cocaine alcohol phenobaritone marijuana carbamazepine all the above
phenobaritone
marijuana
hypothermia and ionizing radiation are examples of what teratogens?
physical teratogens
defined as thee presence of regular uterine contractions with progressive cervical dilation and effacement
stages are from 1-3
labor
a young child enters the clinic with the parents and given a history that the child has cerebral palsy, what is your understanding of this condition in children?
- cerebral palsy can occur pre or post natal and gets worse as the child grows
- cerebral palsy is a neurological condition that only occur prenatal, leading to neurological deficits
- cerebral palsy is a non progressive condition that can occur pre or post birth
- a neurological condition caused by hereditary factors and is family linked causing neurological symptoms with physical disability
- a neurological condition caused by a viral infection post birth leading to physical disabling
3.cerebral palsy is a non progressive condition that can occur pre or post birth
primitive reflexes present and birth?
root suck moro tonic neck palmar group babinski step/placing
affect of ankle range when injured?
reduced ankle dorsiflexion b/c of under developed joints
