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- Risorius: Origin, insertion, innervation, function | Kenhub
Risorius is a slender and narrow facial muscle that belongs to the buccolabial group of muscles It is highly variable and inconsistent where it is believed to be unique to the African apes and humans
- Risorius - Wikipedia
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
- Anatomy, Head and Neck, Risorius Muscle - StatPearls - NCBI Bookshelf
The risorius muscle is a narrow bundle of muscle fibers that becomes narrower from its origin at the fascia of the lateral cheek over the parotid gland and superficial masseter and platysma muscles, to its insertion onto the skin of the angle of the mouth
- Risorius - Structure, Location, Anatomy, Function, Diagram
The risorius is a thin, elongated muscle that is located in the skin of the face It is composed of long, slender fibers that are oriented horizontally and run parallel to the skin surface The muscle is attached to the skin at one end, and to the corner of the mouth at the other end
- Risorius Muscle | Complete Anatomy - Elsevier
Learn about the risorius muscle, its origin, insertion, action, innervation, and arterial supply Understand its role in facial expressions
- RISORIUS Definition Meaning | Merriam-Webster Medical
The meaning of RISORIUS is a narrow band of muscle fibers arising from the fascia over the masseter muscle, inserted into the tissues at the corner of the mouth, and acting to retract the angle of the mouth
- Risorius muscle | Radiology Reference Article - Radiopaedia. org
The risorius muscle (TA: musculus risorius) is one of the muscles of the mouth, a subset of the facial muscles It is often absent and has been described as an accessory muscle
- Risorius - anatomic. us
Risorius is a large muscle among facial muscles It is included in muscles of facial expressions It is located around the mouth Risorius is broad at its origin and thinner at insertion However size and form can vary among individuals Origin: Risorius arises from zygomatic arch , parotid fascia and masseteric fascia
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