Ossification centres
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This document lists ages for the ossification and fusion of various bones in the human skeletal system. Key bones mentioned include: - Clavicle: Ossification begins at the medial end between 18-20 years and the lateral end between 22-23 years. - Scapula: Ossification of the acromion and coracoid process begins around 14 years of age. - Pelvis: The triradiate cartilage begins to ossify between 4-5 months in utero and fuses between 6-7 months. - Femur: Ossification begins in the head around 1 year of age and the distal end around 9 months in utero. -
Ossification centres
- 2. 6 m IU 7 m IU 9 m IU 60 Yrs 40 Yrs STERNUM
- 4. head greater lesser tuberosity 1 Yr 3 Yr 5 Yr 6 Yr (16-18Yr) capitulum trochlea Lateral epicondyle 13 Yr 11 Yr 2 Yr 14Yr (14-17Yr) Medial epicondyle 8 Yr
- 5. Upper end -radius Lower end -radius 6 Yr 2 Yr 6 Yr 10 Yr Upper end -ulna Lower end -ulna RADIUS AND ULNA (14-17Yr) (14-18Yr)
- 7. 14 yr (18 yr) (11-14 yr) (7-8 yr) 16 yr (19 yr-F) (21 yr -M) PELVIS Triradiate cartliage Ilia crest Ischial tuberosity Ischiopubic ramus
- 9. 4-5 m IU 6-7 m IU I II III IV V 8m IU (14 Yr) (20-25) Yr SACRUM
- 10. Head Lower end of femur 1 yr 4 yr 11 yr 9 m IU (15 yr) (14- 17 yr) (14- 17 yr) (14- 17 yr) FEMUR Greater trochanter Lesser trochanter
- 11. Upper end -Tibia Lower end -Tibia Just after birth (14-17 yr) 2 yr (14-17 yr) 4 yr Upper end -Fibula Lower end -Fibula TIBIA AND FIBULA
- 12. (14-17 Yr) TARSAL BONES Calcaneum 5 m IU Talus 7 m IU Cuboid 9 m IU