Superficial muscles of the head and neck, showing the risorius in red. This version of the muscle does not match that shown in most sources.
Muscles of the head, face, and neck. Risorius shown in red. This is the most standard version of the direction and origin of the muscle.
Details
Origin
Parotid fascia
Insertion
Modiolus
Artery
Facial artery
Nerve
Buccal branch of the facial nerve
Actions
Draws back angle of mouth
Identifiers
Latin
musculus risorius
TA98
A04.1.03.028
TA2
2078
FMA
46838
Anatomical terms of muscle
[edit on Wikidata]
The risorius muscle is a highly variable muscle of facial expression. It has numerous and very variable origins, and inserts into the angle of the mouth. It receives motor innervation from branches of facial nerve (CN VII). It may be absent or asymmetrical in some people. It pulls the angle of the mouth sidewise, such as during smiling.
is at the modiolus. The risorius receives motor innervation from the buccal branch of the facial nerve (CN VII). The risorius receives arterial supply...
superior and posterior) Orbicularis oris muscle Depressor anguli oris muscle Risorius Zygomaticus major muscle Zygomaticus minor muscle Levator labii superioris...
The Barbary dove, ringed turtle dove, ringneck dove, ring-necked turtle dove, or ring dove (Streptopelia risoria) is a domestic member of the dove and...
the fat of the cheek, and, near the angle of the mouth, by the platysma, risorius, and zygomaticus major. It rests on the buccinator and levator anguli oris...
platysma muscle, and at its insertion with the orbicularis oris muscle and risorius muscle. Some of its fibers are directly continuous with those of the levator...
splits into a superficial and a deep lamina to enclose the gland. The risorius is a small muscle embedded with this capsule substance. The gland has short...
marginal artery right pulmonary artery right ventricle rima glottidis risorius rod cells rostrum of corpus callosum rotator cuff round ligament of the...
in a frown. The Teeth position would cause the zygomaticus major or the risorius muscle, resulting in a smile. The control group would hold the pen in their...
ligament Diagonal ear lobe crease Preauricular sinus Supernumerary nipple Risorius Psoas minor Absence of the palmaris longus Dividement of the piriformis...
into its terminal branches within its substance of the gland.: 342 The risorius muscle arises from the parotid fascia.: 352 Standring, Susan (2020). Gray's...
Orbicularis Oris for protrusion and rounding, and for [i], [e] by Buccinator and Risorius for retracting the lips. The tongue participate in creating the vowels...
Global Information
