The merged nerve divides into the anterior and posterior division of C5 and C6.

It contains fibres from both the anterior and posterior divisions of the lumbosacral plexus.

A filament from the branch to the Obliquus inferior joins the posterior division of the second cervical nerve.

The posterior division of the third cervical is intermediate in size between those of the second and fourth.

The posterior divisions of the lower five cervical nerves divide into medial and lateral branches.

It descends behind the auricula, and joins the posterior division of the posterior facial vein to form the external jugular.

The posterior division of the L4 root is the Femoral nerve.

Iliolumbar artery (branch of posterior division of internal iliac artery)

In the North Siberian elk (A. a. bedfordiae), the posterior division of the main fork divides into three tines, with no distinct flattening.

The posterior cord is formed from the three posterior divisions of the trunks (C5-C8,T1)