muscles of facial expression

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Related to facial muscle: masseter, Orbicularis oris

fa·cial mus·cles

[TA]
the numerous muscles supplied by the facial nerve that are attached to and move the skin of the face. Terminologia Anatomica includes the buccinator muscle in this group because of its innervation and embryonic origin, even though it functions primarily in mastication.
Farlex Partner Medical Dictionary © Farlex 2012

muscles of facial expression

Thin muscles that insert into the skin of the face; all are innervated by the facial nerve (CN VII). Scalp: frontalis and occipitalis muscles. Ear: anterior, posterior, and superior auricular muscles. Eye: orbicularis oculi. Nose: depressor septi, nasalis, and procerus muscles. Mouth: buccinator, depressor anguli oris, depressor labii inferioris, levator anguli oris, levator labii superioris, mentalis, orbicularis oris, risorius, and zygomaticus muscle. Neck: platysma.
See: face and headfor illus.
See also: muscle
Medical Dictionary, © 2009 Farlex and Partners
References in periodicals archive ?
In this section we attempt to describe the use of optical devices in microscale that can be used to measure the force generated by the movement of the facial muscles, in which those activities can be used to form the relationship between the contraction and relaxation of the facial muscles.
Instead of facial muscles, a tiny heart took shape on his dish.
A computer game which helps improve facial muscles is to launch in the UK.
Washington, Aug 8 (ANI): Just reading some words can activate a person's facial muscles and make him or her smile unknowingly, reveals a new study.
That rate dropped as low as 80 percent in people with the highest facial muscle masses.
According to them, the Einstein robot they worked on has about 30 facial muscles, each moved by a tiny servo motor connected to the muscle by a string.
It apparently detects thoughts through 15 sensors which pick up facial muscle movements - like a grimace or a smile, blinking and lifting an eyebrow - and electrical activity in the brain.
There is, it seems, no end to what it can cure - headaches and migraines, urinary disorders, facial muscle problems and spasms as well as chronic back pain have all been tackled.
Syn-ake works in a similar way to Botox, blocking the neuromuscular contractions that cause facial muscle tension.
Mainly because every facial muscle is so paralysed, he literally can't.
The EMG data was only selected during the period of 0.5-2.5 min of each stage to avoid possible artifacts in power output changes affecting the facial EMG during the first 30 s and avoiding facial muscle crosstalk during the last 30 s.
To determine whether the expressions are unique enough to be distinguished from others, the team analyzed each expression with a Facial Action Coding System (FACS), a standard tool in body language analysis that can identify which facial muscle groups are used to create expressions.