A first finger, commonly known as the index finger or pointer finger, is the digit located adjacent to the thumb. It is longer and more prominent than the other fingers and plays a crucial role in pointing, indicating, and manipulating objects. The first finger is essential for tasks that require precision, such as writing, picking up small items, and operating devices. It also serves as a reference point for hand movements and gestures. Understanding the anatomy and function of the first finger is important for fine motor skills, communication, and overall hand coordination.

英語での「first finger」の定義と意味

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