Hand Anatomy Bone Thumb. The bulbous tuft at the end of the bone gives the thumb its rounded end. In anatomy a sesamoid bone ˈ s ɛ s əm ɔɪ d is a bone embedded within a tendon or a muscle.
The Skeleton of the Hand. The bulbous tuft at the end of the bone gives the thumb its rounded end. A 38-year-old right-hand-dominant computer programmer trips over his cape and falls on his right hand at a renaissance fair.
It attaches to the metacarpal bone of the thumb and helps pull the thumb away from the rest of the hand.
And the 14 digital bones or phalanges 2 in the thumb and 3 in each finger. Master wrist and hand anatomy with this simple carpal bones mnemonic. Hand Base of Thumb Fractures. The bones are numbered laterally from the thumb 1 5.