10 Facts about Fingers

A type of digit on the human body is explained on Facts about Fingers. It can be found on the hands. It is known as an organ of sensation and manipulation. Phalanges are the bones found on the five digits of human fingers. In general, human beings have five digits of finger on each hand. In rare cases, a number of people have fewer or more than five digits because of medical amputations, accidents, or congenital disorders. The latter one includes oligodactyly and polydactyly. Here are other interesting facts about fingers:

Facts about Fingers 1: the five digits

The thumb is considered as the first digit of human fingers. The next part is called index finger. Then it is followed by middle finger and ring finger. The last one is called pinky or little finger.

Facts about Fingers 2: a thumb

A thumb has a special status related to its definition. Some believe that it is a finger. Others state that it is not a finger.

Facts about Fingers 3: the palm

Metacarpal bones are the five bones which makeup the palm. Phalanx bones are also called phalanges which makeup 14 digital bones of human hands. The thumb has two phalanges. However, the middle phalanx is not available in the thumb.

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Facts about Fingers 4: the other four fingers

The other four fingers contain three phalanges. They are the proximal phalanx, middle phalanx, and distal phalanx. The nails are carried by the latter one.

Facts about Fingers 5: the strongest movement

The most powerful movement of finger is flexion. The finger movement has impressive precision.

Facts about Fingers 6: the muscles

If you think that muscles are found in fingers, you are wrong. The muscles of the forearms and palm move the finger joints.

Facts about Fingers 7: muscles of fingers

The intrinsic and extrinsic muscles are the two divisions of muscles of the fingers. The muscle belly housed on the forearm is included as extrinsic muscle.

Facts about Fingers 8: the touch receptors

The touch receptors and thermoreceptors are highly concentrated in the fingertips.  The sensitivity of fingertips to moisture, texture, vibration, pressure and temperature is high.

Read Also: 10 Facts about Fingernails

Facts about Fingers 9: the wrinkled fingertips

The wrinkled fingertips occur when you immerse them inside the water for a long period.

Facts about Fingers 10: polydactyl

Polydactyl is a defined as a rare case, which affects the people whose number of finger digits is more than that of normal people.

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