Arrow finger is a term used in anatomy to describe the second finger or the index finger. It is called so due to its long and slender shape, resembling the tip of an arrow, with its pointed end finishing in a prominent fingertip. The arrow finger is positioned between the thumb and the middle finger on either hand. This finger plays a vital role in hand-related functions, such as pointing, gripping, and manipulating objects.
Functionally, the arrow finger plays a crucial role in hand dexterity and fine motor skills. With the help of the thumb, it enables us to perform intricate tasks that demand precision, like writing, typing, and picking up small objects. Its flexibility allows it to move forwards, backward, and laterally, giving it a wide range of motion.
Anatomically, the arrow finger consists of three bones known as phalanges, namely proximal, middle, and distal phalanges. They are connected by joints, tendons, and ligaments, providing stability and flexibility to the finger. The arrow finger also contains sensory receptors, such as touch receptors, enabling us to detect sensations like pressure, texture, and temperature.
In summary, the arrow finger is the second finger or the index finger, characterized by its slender shape and pointed tip resembling the head of an arrow. It plays a crucial role in various hand-related functions and is essential for fine motor skills and dexterity.
