How many muscles are there in total in an average human's set of fingers?
Gort (The Day the Earth Stood Still) humans while Gnut appears human in several respects. Additionally, the muscles are described as fully functional: [Gnut's] neck and shoulders made Cliff a seat hard as steel, but with the difference that their underlying muscles with each movement flexed, just as would those of a human being. Gnut's movement is supposed to be smooth, walking with an "almost jerkless rhythm which only he among robots possessed", and his hands have "tough metal fingers" while 1951's Gort had none. Gnut also wears a loincloth, though it isn't explained why. Particular attention is given to describing Gnut's eyes, which are "internally illuminated
Muscles of the hand allow for the actual bending of the fingers. The thumb has one long flexor and a short flexor in the thenar muscle group. The human thumb also has other muscles in the thenar group (opponens and abductor brevis muscle), moving the thumb in opposition, making grasping possible. The extensors are located on the back of the forearm and are connected in a more complex way than the flexors to the dorsum of the fingers. The tendons unite with the interosseous and lumbrical muscles to form the extensorhood mechanism. The primary function of the extensors is to straighten out the digits.