Ptosis can also be caused by damage to the adjoining superior tarsal muscle, or its sympathetic innervation.

It has both sympathetic and parasympathetic innervation.

The sympathetic innervation of lymphoid tissues is dopaminergic, and increases during stress.

There is sympathetic innervation of the thymus gland.

The pineal gland receives a sympathetic innervation from the superior cervical ganglion.

In sum, the volume decreases, but the secretions are increased by parasympathetic and sympathetic innervation.

Sympathicolysis is a procedure for temporary or long-term elimination of sympathetic innervation.

In Horner's syndrome, the sympathetic innervation to the pupillary dilator muscle is lost.

Frey was first to recognize this syndrome as a disorder of both sympathetic and parasympathetic innervations.

It receives sympathetic innervation from the celiac ganglion.