Primitive Reflexes and Neuro Exam

Question 1

Which primitive reflex is in the mesencephalon?

Answer 1

Moro (only one!)

Question 2

What is the first primitive reflex to develop? When?

Answer 2

Fear Paralysis, in 1st trimester

Question 3

What inhibits the freeze response?

Answer 3

Moro? TLR?

Question 4

Which exercise is for the ATNR?

Answer 4

Lizard exercise (homolateral movement seen in lizards)

Question 5

What exercise is for the Moro?

Answer 5

Starfish exercise

Question 6

When does the Moro reflex appear & when should it disappear?

Answer 6

It appears at the 2nd trimester

Disappears at 2-4 months old

Question 7

When does the Galant reflex emerge & when should it disappear?

Answer 7

emerges at 20 weeks in utero

Disappears at 3-9 months old

Question 8

What is the exercise for the Galant?

Answer 8

Angels in Snow exercise, jumping jacks?

Question 9

What is the exercise for TNR?

Answer 9

Cannonball exercise

Question 10

Head turn toward which side?

Answer 10

toward weak/immature brain side

Question 11

When does the ATNR emerge? Disappear?

Answer 11

?

Disappears at 4-6 months

Question 12

What is the only PR that develops outside of the womb? When?

Answer 12

TNR, develops at 5-6 months old as get ready to crawl

should go away by when start walking (~12 months)