A hand is a prehensile, multi-fingered appendage positioned at the stop of the forearm or forelimb of primates together with human beings, chimpanzees, monkeys, and lemurs. A few other vertebrates together with the koala (which has opposable thumbs on each "hand" and fingerprints extremely similar to human fingerprints) are often defined as having "arms" in preference to paws on their the front limbs. The raccoon is typically described as having "palms" though opposable thumbs are lacking. A few evolutionary anatomists use the time period hand to refer to the appendage of digits on the forelimb extra usually — as an example, within the context of whether or not the three digits of the chicken hand concerned the identical homologous loss of two digits as within the dinosaur hand.
The human hand usually has five digits: 4 arms plus one thumb; those are frequently stated collectively as 5 hands, but, wherein the thumb is covered as one of the hands. It has 27 bones, not consisting of the sesamoid bone, the range of which varies among human beings, 14 of which are the phalanges (proximal, intermediate and distal) of the palms and thumb. The metacarpal bones connect the arms and the carpal bones of the wrist. Each human hand has 5 metacarpals and eight carpal bones. Arms include a number of the densest regions of nerve endings inside the body, and are the richest supply of tactile comments. They also have the greatest positioning functionality of the body; as a result, the feel of touch is in detail associated with palms.
In this sub category you can download free PNG images: Hand Objects. In this category "Hand" we have 2 free PNG images with transparent background.