It is innervated by the deep branch of the ulnar nerve.

Husbands and wives were bound by deep ties-like two branches grafted together.

As a deep branch on the homo tree, it has two functions in population genetics.

Some sources state that it ends by dividing into a superficial and a deep branch.

It is considerably diminished in size compared to the deep branch of the radial nerve.

In the hand, via the deep branch of ulnar nerve:

It is accompanied by the deep palmar branch of ulnar artery.

When passing through the supraorbital notch it divides into a superficial and a deep branch.

The deep part is often innervated by the deep branch of the ulnar nerve.

It is controlled by the deep perineal branch of the pudendal nerve.