Are there muscles in the fingers?

in the human body none of the 20 fingers (hands and feet) have muscles instead they are just made up of bones, ligaments and tendons.

Ligaments unite the different bones of the finger and the joints between them, while the tendons unite these bony and ligamentous structures with the muscles of the forearm (fingers) or calf (toes), and with the muscles of the palm and back of the hand. and sole and instep.

It is these muscles of the forearm or calf and the palms that are responsible for the movement of the fingers; its contraction and relaxation pulls and loosens the tendons that attach to the bones of the fingers and thus produce movement.

The muscles that move the fingers can be classified into two major groups:

Short muscles of the hand (or foot): they insert and originate in the hand or foot and give very high precision to the movements of the fingers. They are also called “intrinsic muscles of the hand” (or foot). For example, in the hand we have the opposing muscle of the little finger, the short flexor muscle of the little finger, the opposing muscle of the thumb or the palmar cutaneous muscle. An example of a short foot muscle would be the Pedius (extensor hallucis brevis). long muscles: they do not originate in the hand or foot, but insert into them. They provide more abrupt, general and less precise movements. They are located on the forearm for the fingers or the calf for the toes. They are also known as “extrinsic muscles of the hand” (or foot). For example, the flexor digitorum longus muscle or the flexor digitorum profundus muscle.
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More facts about fingers…

For each hand there are a total of 19 muscles that provide movement to the fingers, including intrinsic and extrinsic muscles. The skin on your fingertips has many more nerve endings than any other part of the body, so it’s the area where the sense of touch is most sensitive. On average, women have longer index fingers and men have ring fingers.

Gallery

There are no muscles in the fingers. The image shows the opposing thumb muscle on the back of the hand. Flexor digitorum profundus muscle, located in the forearm. Marked in red, the flexor digitorum brevis muscle Highlighted in red, the flexor digitorum longus muscle (calf)

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