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Hand with index finger being shorter than the ring finger, resulting in a small 2D:4D ratio. Image shows the measurement procedure of dorsal digit length using vernier calipers. The hand is placed on the edge of a table so that fingers are rested on table while making an angle of 90 degrees to the palm.
The index finger (also referred to as forefinger, [1] first finger, [2] second finger, [3] pointer finger, trigger finger, digitus secundus, digitus II, and many other terms) is the second digit of a human hand. It is located between the thumb and the middle finger. It is usually the most dextrous and sensitive digit of the hand, though not the ...
The first finger is an ambiguous term in the English language due to two competing finger numbering systems that can be used. It might refer to either the thumb or the index finger, depending on the context. The second finger is another ambiguous term in English. It might refer to either the index finger or the middle finger, also dependent on ...
The difference in finger length is caused by the amount of testosterone and estrogen one receives in the womb. More testosterone means a shorter index finger compared to the ring finger, and more ...
The middle finger, long finger, second finger, [1] [2] third finger, [3] toll finger or tall man is the third digit of the human hand, located between the index finger and the ring finger. It is typically the longest digit. In anatomy, it is also called the third finger, digitus medius, digitus tertius or digitus III.
The ring finger, third finger, [1] fourth finger, [2] [3] leech finger, [4] or annulary is the fourth digit of the human hand, located between the middle finger and the little finger. [ 5 ] Sometimes the term ring finger only refers to the fourth digit of a left-hand , so named for its traditional association with wedding rings in many ...
Although each finger seems to move independently, moving one finger also moves the other fingers slightly which is called finger interdependence or finger enslaving. [14] [15] [16] Fingers do not contain muscles (other than arrector pili). The muscles that move the finger joints are in the palm and forearm. The long tendons that deliver motion ...
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