Muscle that draws the auricle of the outer ear upwards
The superior auricular muscle is a muscle above the auricle of the outer ear. It originates from the epicranial aponeurosis, and inserts into the upper part of the medial surface of the auricle. It draws the auricle upwards.
Structure.
The superior auricular muscle originates from the epicranial aponeurosis. Its fibres converge to be inserted by a thin, flattened tendon into the upper part of the medial surface of the auricle of the outer ear.
It is the largest of the three auriculares muscles. It is thin and fan-shaped.
Nerve supply.
The superior auricular muscle is supplied by the temporal branch of the facial nerve (VII).
Function.
Research on electromyographic signals in humans suggests superior auricular muscle has vestigal role linked to attempts to separate different sound sources.
References.
 "This article incorporates text in the public domain from the 20th edition of" Gray's Anatomy "(1918)"