PRENATAL DEV

Question 1

this is related to the switching on and off of genes that previously were not operating

Answer 1

differentiation

Question 2

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

Answer 2

gestational age

anatomic age

Question 3

bows before tows at what weeks?

Answer 3

6/7 weeks

Question 4

during what period of development can mechanical injuries causing amniotic ruptures produce limb amputations?

pre embryonal
embryonal
fetal
at anytime during gestation

Answer 4

embryonal

Question 5

initial growth and patterning of the limbs occurs during what weeks?

Answer 5

4-8 weeks

Question 6

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?

Answer 6

4 weeks, 4-7 weeks, 6-8 weeks

8 weeks

Question 7

absence of entire limbs

Answer 7

amelia

Question 8

absence of part of a limb

Answer 8

meromelia

Question 9

absence of digits

Answer 9

phocomelia

Question 10

lobster claw deformity

Answer 10

adactyly

Question 11

extra digits?

fusion digits?

Answer 11

polydactyly

syndactyly

Question 12

a patient has phocomelia in girls foot; what week during prenatal growth would affect the lower limb like this?

Answer 12

7th week

Question 13

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

Answer 13

weeks 4-8 of development

Question 14

fetus with excessive glucose resulting in accumulation of fat and visceromegaly of heart and liver occurs during what trimester?

Answer 14

3rd trimester

Question 15

which 2 chemical teratogens can cause TEV?

cocaine
alcohol
phenobaritone
marijuana
carbamazepine 
all the above

Answer 15

phenobaritone

marijuana

Question 16

hypothermia and ionizing radiation are examples of what teratogens?

Answer 16

physical teratogens

Question 17

defined as thee presence of regular uterine contractions with progressive cervical dilation and effacement

stages are from 1-3

Answer 17

labor

Question 18

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?

1. cerebral palsy can occur pre or post natal and gets worse as the child grows
2. cerebral palsy is a neurological condition that only occur prenatal, leading to neurological deficits
3. cerebral palsy is a non progressive condition that can occur pre or post birth
4. a neurological condition caused by hereditary factors and is family linked causing neurological symptoms with physical disability
5. a neurological condition caused by a viral infection post birth leading to physical disabling

Answer 18

3.cerebral palsy is a non progressive condition that can occur pre or post birth

Question 19

primitive reflexes present and birth?

Answer 19

root
suck
moro
tonic neck
palmar group 
babinski
step/placing

Question 20

affect of ankle range when injured?

Answer 20

reduced ankle dorsiflexion b/c of under developed joints