Bursae are small sacs located between moving structures such as bones, muscles, skin and tendons.
滑囊是较小的囊状物，位于勾当的布局间，如骨骼，肌肉，皮肤和肌腱。
It's a spider's web of muscles and tendons under the skin, many of them unique to the human hand.
手掌皮肤下的肌肉和肌腱密如蜘网，其中许多肌肉和肌腱，仅仅是人手所特有的。
Mummies of pleistocene ground sloths, with original skin, hair, tendons and claws have been found.
还发现了保存原有皮肤，毛发，腱和爪的更新世时期地面树懒的木乃伊。
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