Final answer:
The bones from the tip of the little finger to the base of the hand are the distal, middle, and proximal phalanges of the little finger, and the metacarpal bone of the fifth digit, articulating at the metacarpophalangeal joint.
Step-by-step explanation:
The four bones from the tip of the little finger to the base of the hand are called the phalanx bones, specifically the distal, middle, and proximal phalanges of the little finger, followed by the metacarpal bone of the fifth digit. From the distal (tip) to the proximal (near the wrist), these bones form the skeletal structure of the finger, which articulates with the distal row of carpal bones at the metacarpophalangeal joint, contributing to hand movement and dexterity. The metacarpals form the palm of the hand and articulate with the carpal bones at the wrist, which are structured in two rows and include the scaphoid, lunate, triquetrum, and pisiform in the proximal row, and the hamate, capitate, trapezoid, and trapezium in the distal row.