Hand of whether the three digits of the bird hand involved the same homologous loss of two digits as in the dinosaur hand. The human hand normally has five digits: four fingers plus one thumb; these are often referred to collectively as five fingers, however, whereby the thumb is included as one of the fingers. It has 27 bones, not including the sesamoid bone, the number of which varies between people, 14 of which are the phalanges (proximal, intermediate and distal) of the fingers and thumb. The metacarpal bones connect the fingers and the carpal bones of the wrist. Each human
Bones (instrument) cutting of a yardstick. They are played by holding them between one's fingers, convex surfaces facing one another, and moving one's wrist in such a way that they knock against each other. One method involves placing the bones to either side of the middle finger such that approximately two-thirds of their length extends along the palm while the remainder protrudes above the fingers on the backside of the hand. The hand is held in a loose fist with the bones and the curled fingers roughly parallel to the palm, with the bone closest to the ring finger gently held against