Is Orbicularis Oculi a Smooth Muscle?
The Superior Tarsal Muscle (Müller's Muscle) Is Comprised of Smooth Muscle and Also Contributes to the Elevation of the Upper Eyelid. in the Lower Eyelid, the...
The superior tarsal muscle (Müller's muscle) is comprised of smooth muscle and also contributes to the elevation of the upper eyelid. In the lower eyelid, the retractors are the capsulopalpebral fascia and the inferior tarsal muscle. The orbicularis oculi muscles are the main protractors (closure) of the eyelids.
What type of muscle is the orbicularis oculi muscle?
Shape. The orbicularis oculi muscle is a broad, flat, sheet of skeletal muscle with orbital, palpebral and lacrimal portions. The circular orientation of the fibres is a reflection of the sphincter-like function of this muscle.
What type of tissue is the orbicularis oculi?
Orbicularis Oculi
A sphincter muscle used to open and close eyelid.
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