Pediatrics

Question 1

Neural Arch

Answer 1

Primary Ossification Centre
Begins at 1 year
Starts in the lumbar spine

Question 2

Neural Arch to VB

Answer 2

Primary Ossification Centre
Cervical: 3Y
Lumbar: 6Y

Question 3

Ring Apophysis/Epiphysis

Answer 3

Secondary Ossification Centre
Ossification: 9 Y
Fusion: 20-25 Y

Question 4

Triradiate Cartilage

Answer 4

Fusion: 13-15 Y

Question 5

Ishiopubic Synchondrosis

Answer 5

Fusion: 4-8 Y

Question 6

Iliac Crest Apophysis (Risser’s Sign)

Answer 6

Ossification: 14 Y in females, 16 Y in males
Fusion: 3-4 Y after Ossification
Ossifies Lateral to Medial
Fuses Medial to Lateral

Question 7

Proximal Humerus Growth Plate

Answer 7

Normally V Shape (fusion of growth centres) 7Y
Humeral Head 6 Mo
Greater Tuberosity 3 Y
Lesser Tuberosity 5 Y

Question 8

Acromion (distal end)

Answer 8

Ossification 14 Y

Fusion 21-25 Y

Question 9

Elbow Secondary Ossification Centres

Answer 9

C - Capitullum 1 Y
R - Radial Head
I - Medial Epicondyle
T - Trochlea (may have multiple centres)
O - Olecranon Process
L - Lateral Epicondyle 11 Y
(Come Rub My Tree Of Love)

Question 10

Carpal Ossification

Answer 10

Order:
Capitate
Hamate
Triquetrum
Lunate
Scaphoid
Trapezium
Trapezoid
Pisiform