Dorsal surface of the the carpals and metacarpals

zone 2

èr bù wèi 二部位

Dorsal surface of the fifth metacarpal (little)

wǔ zhǎng gǔ bèi miàn 五掌骨背面

Dorsal surface of the fourth metacarpal (ring)

sì zhǎng gǔ bèi miàn 四掌骨背面

Dorsal surface of the third metacarpal (middle)

sān zhǎng gǔ bèi miàn 三掌骨背面

Dorsal surface of the second metacarpal (index)

èr zhǎng gǔ bèi miàn 二掌骨背面

Dorsal surface of the first metacarpal (thumb)

yī zhǎng gǔ bèi miàn 一掌骨背面

Shàng bái

Upper (above) white 上白

Fēn bái

Divide (divergent) white 分白

Nèi bái

Inner white 内白

Wài bái

Outer (exterior) white 外白

Zhōng bái

Center (middle) white 中白

Xià bái

Lower (bellow) white 下白