Hand
A hand is the part of the body at the end of an arm. Most humans have two hands. Each hand usually has four fingers and a thumb. On the inside of the hand is the palm. The five bones inside this part of the hand are called metacarpals. The wrist connects the hand to the arm. The hand has 27 bones including the wrist bones.
When the fingers are all bent tightly, the hand forms a fist. The joints that are the hardest part of the fist are called knuckles. Many other animals, especially other primates, have hands that can hold things. Human hands can do things other hands cannot.
Hand Media
Hand parts (English language).
Main division on the (right) human hand.
Hand-bone animation (metacarpal movement is exaggerated, other than on the thumb)
Image showing the carpal bones
Arches of the handRed: one of the oblique archesBrown: one of the longitudinal arches of the digitsDark green: transverse carpal archLight green: transverse metacarpal arch
Muscles and other structures of wrist and palm
Extensor compartments of wrist (back of hand)
Cutaneous innervation of the upper limb
Arteries of the right hand (palmar view)
X-ray of the left hand of a ten-year-old boy with polydactyly
Hand Bone Anatomy, by Jason Christian.
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