The little finger contains the proper palmar digital arteries and dorsal digital arteries, as well as the palmar and dorsal digital nerves.
The proper palmar digital arteries travel along the sides of the phalanges (along the contiguous sides of the index, middle, ring, and little fingers), each artery lying just below (dorsal to) its corresponding digital nerve. They travel along the sides and dorsal aspects of the phalanges of the middle finger, ring finger, and little finger. Dorsal digital nerves of ulnar nerve the second common palmar digital nerve splits into two proper digital nerves for the adjoining sides of the third and fourth digits. 
