Index finger
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| Index finger | |
|---|---|
| Human hand with index finger extended | |
| Artery | radial artery of index finger |
| Dorlands/Elsevier | i_06/12448665 |
The second digit of a human hand is also referred to as the index finger, pointer finger, forefinger, digitus secundus, or digitus II.
It is located between the first and third digits - that is, between the thumb and the middle finger. It is usually the most dextrous and sensitive finger of the hand, though not the longest. It may be used to point to things, for hunt and peck typing, to press an elevator button, or to tap on a window. A lone index finger often is used to represent the number 1, or when held up or moved side to side (finger-wagging), it can be an admonitory gesture. With the hand held palm out, it represents the letter d in the American Sign Language alphabet. In sports, it can also represent victory, as some championship-winning teams raise their index finger while posing for a championship team photo.
Studies have also found that a smaller index finger compared with the ring finger indicates a better athlete.[1]
Gestures
As mentioned above, the forefinger can be used for pointing. However, this gesture is considered rude in some countries (Brunei, for instance), and other gestures are used instead.
During the Bosnian war, Serbo-Bosnian troops raised three fingers in a sign of victory, Bosnian Croats raised the two-finger V-sign and Muslims (Bosniaks) raised one (after the strict monotheism of Islam).
Unicode
There are six index finger symbols in Unicode.
- Black left pointing index: U+261A ☚
- Black right pointing index: U+261B ☛
- White left pointing index: U+261C ☜
- White up pointing index: U+261D ☝
- White right pointing index: U+261E ☞
- White down pointing index: U+261F ☟
See also
Additional images
Creation of Adam (Michelangelo) Detail.jpg
Sistine Chapel, Detail, Michelangelo |
Mathis Gothart Grünewald 024.jpg
Isenheim Altarpiece, Detail: Hl. John the Baptist |
Jeanbaptiste.jpg
|
Plato-raphael.jpg
The School of Athens, Detail, Raphael |
Dislocated finger x-ray.JPG
Lateral X-ray of left finger, showing proximal interphalangeal joint dislocation and fracture of the base of the middle phalanx |
References
External links
- index+finger at eMedicine Dictionary
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Acknowledgement and Attribution Regarding Sources of Content
Some of the initial content on this page may be incorporated in part from copyleft sources in the public domain including wikis such as Wikipedia and AskDrWiki. Drug information for patients came from the The National Library of Medicine. Infectious disease information may have come from the Centers for Disease Control (CDC). Differential Diagnoses are drawn from clinicians as well as an amalgamation of 3 sources: 1.The Disease Database; 2. Kahan, Scott, Smith, Ellen G. In A Page: Signs and Symptoms. Malden, Massachusetts: Blackwell Publishing, 2004:3; 3. Sailer, Christian, Wasner, Susanne. Differential Diagnosis Pocket. Hermosa Beach, CA: Borm Bruckmeir Publishing LLC, 2002:7 .
