Development and Growth

Question 1

What age range represents the greatest change in bone mass in girls?

Answer 1

12-15

Question 2

What age range represents the greatest change in bone mass in boys?

Answer 2

14-17

Question 3

What are the earliest markers of abnormal neurologic maturation?

Answer 3

obligatory or persistent primitive reflexes

Question 4

When does prone head righting reflex emerge?

Answer 4

2 months

Question 5

When does the supine head righting reflex emerge?

Answer 5

3-4 months

Question 6

When does the body righting reflex emerge?

Answer 6

4-6 months

Question 7

When does protective extension/parachute reactions emerge for anterior, lateral, and posterior directions?

Answer 7

• anterior: 5-7 months
• lateral: 6- 8 months
• posterior: 7 - 8 months

Question 8

What is the age of suppression of the ATNR?

Answer 8

6-7 months

Question 9

What reflex presents with extensor tone when supine and flexor tone when prone?

Answer 9

tonic labyrinthine

Question 10

What characterizes 4 month old fine motor activity?

Answer 10

hands mostly open, midline hand play, crude palmar grasp

Question 11

What characterizes 7 month old fine motor activity?

Answer 11

intermediate grasp, transfer cube from hand to hand

Question 12

What characterizes 10 month old fine motor activity?

Answer 12

pincer grasp, bangs two cubes held in hands

Question 13

At what age can a child walk backwards?

Answer 13

18 months

Question 14

At what age does a child begin running?

Answer 14

2 years old

Question 15

At what age can a child walk up and down stairs alone?

Answer 15

2 years old

Question 16

At what age can a child walk up stairs alternating feet?

Answer 16

3 years old

Question 17

At what age can a child walk down stairs alternating feet?

Answer 17

4 years old

Question 18

At what age do the plantar arches develop?

Answer 18

4 years old

Question 19

How many cubes can a two year old stack?

Answer 19

8

Question 20

At what age does a child use a spoon well?

Answer 20

2

Question 21

At what age does toilet training start?

Answer 21

2

Question 22

Shape copied at age 3?

Answer 22

circle

Question 23

What are 5 year old gross motor milestones?

Answer 23

skips, balance 10 seconds on each foot

Question 24

Shape copied at age 5

Answer 24

triangle

Question 25

Shape copied at age 4

Answer 25

square

Question 26

At what age should a child be able to pivot circles when prone?

Answer 26

5 months

Question 27

At what age should a child be able to prone prop on extended elbows?

Answer 27

3 months

Question 28

At what age should a child be able to roll prone to supine?

Answer 28

4 months

Question 29

At what age does the sitting equilibrium or tilting reaction emerge?

Answer 29

6 to 8 months

Question 30

At what age does the standing equilibrium or tilting reaction emerge?

Answer 30

12 to 14 months

Question 31

What is the prevalence of Autism in the US?

Answer 31

About 1 per 100

Question 32

What is the age of suppression of the Moro reflex?

Answer 32

4 to 6 months

Question 33

What is the age of suppression of the rooting reflex?

Answer 33

4 months

Question 34

What is the age of suppression of the positive supporting reflex and automatic walking?

Answer 34

3 to 5 months, replaced by volitional weight bearing with support

Question 35

What is the age of suppression of the palmar grasp reflex?

Answer 35

5 to 6 months

Question 36

What is the neck righting or body derotational reflex?

Answer 36

primitive reflex of the body rotating in direction of neck rotation

Question 37

Age of suppression of neck righting/body derotational reflex?

Answer 37

4 months, replaced by rolling

Question 38

What is seen with the STNR reflex?

Answer 38

On flexion of the neck, flexion in the upper limbs and extension of the lower limbs is observed. On extension of the neck, the opposite pattern will be seen.

Question 39

What is seen with the ATNR reflex?

Answer 39

extension in the upper and the lower limbs on the nasal side, and flexion of both limbs on the occipital side

Question 40

What is the scissor grasp and what age is it seen?

Answer 40

using 4 fingers and side of thumb, 8 months

Question 41

What age is the fine pincer grasp achieved?

Answer 41

12 months

Question 42

What is the difference between fine pincer and pincer grasp?

Answer 42

The pincer grasp incorporates the PIP of the index finger whereas the fine pincer uses just the DIP and the thumb.

Question 43

At what age does a child demonstrate disappearance of head lag when pulled to sit?

Answer 43

4 months

Question 44

What is brachiocephaly?

Answer 44

Width of skull more than 80% the length

Question 45

What is dolichocephaly or scaphocephaly?

Answer 45

width is less than 75% the length

Question 46

What is the age range for the WeeFIM?

Answer 46

6 months to 7 years old