prenatal growth and functional development

Question 1

stages of prenatal growth

Answer 1

egg
embryo
fetus

Question 2

egg

Answer 2

first 2 weeks after fertilizations
rapid cell division in sequence:
morula
blastocyst
implantation
differentiation of cellular layers

Question 3

embryo

Answer 3

weeks 3-8
differentiation of stem cells into specific cell types
organization of cell types into tissues (organs)

Question 4

embryo- differentiation of stem cells

Answer 4

totipotent (whole)
pluripotent (many)
multipotent (several)

Question 5

by end of embyo

Answer 5

all basic anatomic and physiologic features established

Question 6

fetus

Answer 6

weeks 9-40
rapid growth
changes in proportions
functional devleopment of tissues, organs, systems

Question 7

gestation can vary from

Answer 7

38-42 weeks

Question 8

weight gain overtime =

Answer 8

sigmoid curve

Question 9

birth weight and height at week 20

Answer 9

10-12% weight
50% height

Question 10

major changes in proportions of body segments - fetus

Answer 10

head
trunk
LE

Question 11

fetal motor activity starts at

Answer 11

12 weeks

Question 12

fetal motor activity - age specific

Answer 12

nm changes, primary reflexes, muscle tone, reactivity, motility, sensorimotor behaviour

Question 13

fetal motor behaviours are precursors to

Answer 13

postnatal motor behaviours