Chapter 5: Fetal Sensorimotor Development

Question 1

First Trimester Muscle Spindle

Answer 1

• Muscle starts to differentiate

- Tissue becomes specialized

Question 2

First Tri touch and tactile system

Answer 2

• first sensory system to develop

- response to tactile stimulus

Question 3

First tri vestibular system

Answer 3

-functioning at the end of the first trip (not completely developed)

Question 4

First tri vision

Answer 4

eyelids fused and optic nerve/cup being formed

Question 5

First tri taste

Answer 5

taste buds develop

Question 6

First tri movement

Answer 6

sucking, hiccuping
fetal breathing
quick generalized limb movement
positional changes
7.5 weeks; bend neck and trunk away from perioral stroke

Question 7

second tri mm spindle

Answer 7

motor end plate forms

clonus response to stretch

Question 8

second tri touch and tactile system

Answer 8

receptors differentiate

Question 9

second tri vision

Answer 9

startle to light

visual processing occurs

Question 10

second tri auditory

Answer 10

will turn to sound

Question 11

second tri movement

Answer 11

quickening
sleep states
grsp reflex
reciprocal and symmetrical limb movement

Question 12

third tri mm spindle

Answer 12

some mm are mature and functional others still maturing

Question 13

third tri touch and tactile system

Answer 13

touch functional
actual temp discrimination at the end of third tri
most mature sensory system at birth

Question 14

third tri vision

Answer 14

fixation occurs

able to focus (fixed focal length)

Question 15

third tri olfactory

Answer 15

nasal plugs disappear, some olfactory perception

Question 16

third tri taste

Answer 16

can respond to different tastes (sweet, sour, bitter, salt)

Question 17

third tri movement

Answer 17

28 weeks primitive motor reflexes
rooting, suck, swallow
palmar grasp
plantar grasp
MORO
crossed extension