The term "metacarpal" refers to the five long bones located in the middle part of the hand. These bones connect the wrist bones, known as the carpals, to the finger bones, called the phalanges. Each metacarpal bone corresponds to one of the fingers, providing structure and support for hand movements. Metacarpals are numbered from one to five, starting with the thumb as the first metacarpal. They play a crucial role in hand function, allowing for gripping and manipulation of objects. Injuries to the metacarpals, such as fractures, can significantly impact hand mobility and strength.