Sentences with word «orbicularis»

This is achieved through the three parts of orbicularis oculi muscle.
No more than one in 10 people can voluntarily control the outer orbicularis oculi, the muscles surrounding the eye sockets, with that much precision.
The Hotz - Celsus technique involves the removal of strip of skin and orbicularis oculi muscle parallel to the affected portion of the lid and then the skin is sutured.
«The Duchenne smile involves both voluntary and involuntary contraction from two muscles: the zygomatic major (raising the corners of the mouth) and the orbicularis oculi (raising the cheeks and producing crow's feet around the eyes),» according to Adoree Durayappah in Psychology Today.
«A fake smile or, as I like to call it, a «Say Cheese» smile involves the contraction of just the zygomatic major since we can not voluntarily contract the orbicularis oculi muscle.»
In the upper half of the face, the orbicularis oculi muscles around the eyes contract, closing the eyes tightly, and the corrugator muscle lowers our eyebrows.
People often find it easier to fake positive emotions than negative ones, because they involve only two muscles: the zygomaticus major, which helps curl the mouth when we smile, and the orbicularis oculi that crinkles the skin around the eyes into crow's feet.
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