orbicularis


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or·bic·u·la·ris

(ōr-bik'yū-lā'ris),
1. Circular; denoting a circular or disc-shaped structure.
2. Synonym(s): orbicular muscle
[L. fr. orbiculus, a small disk]

orbicularis

(or-bik″yŭ-lar′ĭs) (or-bik″yŭ-lar′ēz″) plural.orbiculares
A muscle surrounding an orifice; a sphincter muscle.
References in periodicals archive ?
Restylane (two lids) or Juvederm Ultra (eight lids) were injected in the pretarsal and / or prelevator aponeurosis regions along the length of the upper eyelid deep to the orbicularis oculi muscle using a feathered layered approach until the desired endpoint (resolution of lagophthalmos without obstruction of visual axis) was reached.
In external DCR, there is an external nasal scar and the possibility of injury to medial canthal ligament and orbicularis muscle.
A total dose of four units of botulinum toxin A was injected into the right levator labii superior muscle, two units into the right levator anguli oris muscle, two units into the left depressor anguli oris muscle, and two units into the right inferior orbicularis oris muscle.
Orbicularis oculi reflex and masseter reflex in trigeminal neuralgia, paratrigeminal syndrome, and other lesions of the trigeminal nerve.
Eyeblink EMG responses were recorded from the left orbicularis oculi muscle with two Ag/AgCl electrodes (4 mm diameter) filled with conductive gel (Signa, Parker).
Look for contraction of the orbicularis oculi muscle if convergence spasm is suspected, in which case associated contraction of this muscle of the face during eye movement examination usually also occurs.
This protocol establishes the aesthetic analysis of nasogenian grooves, vertical ridges in the lips area and the orbicularis eye region, procerus and forehead, as well as the appearance of marionette lines, as shown in Figure 1.
Intramuscular injection in the superior temporal aspect of the orbicularis oculi at 3 points with a total dose of about 10-15 U Botox or 30-40 U Dysport is recommended.
McCarthy and Court21 attributed vermillion notching after cleft lip repair to excessive sacrifice of vermillion during primary repair or inadequate approximation of orbicularis muscle fibres.
Reference jitter values for concentric needle electrodes in voluntarily activated extensor digitorum communis and orbicularis oculi muscles.
The orbicularis muscle was sharply dissected away from the skin laterally.