Question

which structure is highlighted?

Explanation:

The highlighted structure in the image is one of the metacarpal bones of the hand. Metacarpal bones connect the wrist (carpal) bones to the fingers (phalanges). There are five metacarpal bones in each hand, and they are numbered 1 - 5 starting from the thumb - side. The highlighted bone is likely the fifth metacarpal.

Answer:

Fifth metacarpal bone