HUMERUS

1 ANATOMICAL NECK

2 CAPITULUM

3 CORONOID FOSSA

4 DELTOID TUBEROSITY

5 GREATER TUBERCLE

6 HEAD OF HUMERUS

7 INTERTUBERCULAR GROOVE/ SULCUS (BICIPITAL GROOVE)8 LATERAL EPICONDYLE

9 LATERAL SUPRACONDYLAR RIDGE OF THE HUMERUS

10 LESSER TUBERCLE

11 MEDIAL EPICONDYLE

12 MEDIAL SUPRACONDYLAR RIDGE OF THE HUMERUS

13 OLECRANON FOSSA

14 RADIAL FOSSA

15 GROOVE FOR THE RADIAL NERVE (SPIRAL GROOVE)

16 SURGICAL NECK

17 TROCHLEA

RADIUS

1 BODY OF THE RADIUS

2 DORSAL TUBERCLE

3 HEAD OF THE RADIUS

4 INTEROSSEUS BORDER OF THE RADIUS

5 INTEROSSEUS MEMBRANE OF THE FOREARM

6 NECK OF THE RADIUS

7 RADIAL TUBEROSITY (TUBEROSITY OF THE RADIUS)

8 STYLOID PROCESS OF THE RADIUS

9 ULANAR NOTCH OF THE RADIUS ULNA

1 BODY OF THE ULNA

2 CORNOID PROCESS

3 HEAD OF ULNA

4 INTEROSSEUS BORDER OF THE ULNA

5 OLECRANON PROCESS

6 RADIAL NOTCH OF THE ULNA

7 STYLOID PROCESS OF THE ULNA

8 TROCHLEAR NOTCH OF THE ULNA

9 ULNAR TUBEROSITY (TUBEROSITY OF THE ULNA)

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4

56

7

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23

8

10

11

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1717

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14

5

4

8

3

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Lateral of Right Humerus

2

11

3

67

9

2

34

6

7

13

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258 ON PROCESS

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Lateral of Right Humerus

Lateral of Right Humerus

Anterior of Right Humerus

Medial of Right

Humerus

Anterior of Right Ulna and

Radius

Anterior of Right Ulna and

Radius

Posterior of Right Ulna and

Radius

The epiphyseal plate (or growth plate) is a hyaline cartilage plate in the metaphysis at each end of a long bone. The plate is found in children and adolescents; in adults, who have stopped growing, the plate is replaced by an epiphyseal line.

Whereas endochondral ossification is responsible for the initial bone development from cartilage in utero and infants, the epiphyseal plate is responsible for longitudinal growth of bones. The plate's chondrocytes are under constant division by mitosis. These daughter cells stack facing the epiphysis while the older cells are pushed towards the diaphysis. As the older chondrocytes degenerate, osteoblasts ossify the remains to form new bone. Around the end of puberty, the epiphyseal cartilage cells stop duplicating and the entire cartilage is slowly replaced by bone, leaving only a thin epiphyseal line.[1] Once the adult stage is reached, the only way to manipulate height is modifying bone length via distraction osteogenesis.The growth plate has a very specific morphology in having a zonal arrangement. The growth plate includes a relatively inactive reserve zone at the epiphyseal end, moving distally into a proliferative and then hyper trophic zone and ending with a band of ossifying cartilage (the metaphysis). The growth plate is clinically relevant in that it is often the primary site for infection, metastasis, fractures and the effects of endocrine bone disorders