Author: Gordana Sendic•Reviewer: Jana VaskovićLast reviewed: October 05, 2021Reading time: 26 minutes
Facial muscle (Musculi faciales)
The face muscles, also called craniofacial muscles, are a group of about 20 level skeletal muscles lying underneath the skin the the face and also scalp. Many of them originate native the bones or fibrous structures of the skull and also radiate to insert on the skin.
You are watching: This muscle compresses the cheek when you whistle.
Contrary come the other skeletal muscle they space not surrounded by a fascia, v the exemption of the buccinator muscle. The face muscles space positioned about facial openings (mouth, eye, nose and also ear) or stretch throughout the skull and also neck. Thus, these muscles are categorized right into several groups;Muscles that the mouth (buccolabial group)Muscles the the nose (nasal group)Muscles the the cranium and also neck (epicranial group)Muscles that the outside ear (auricular group)Muscles that the eyelid (orbital group)
The specific location and attachments the the face muscles allow them to produce movements the the face, such as smiling, grinning and frowning. Thus, this muscles are frequently called muscles of facial expression, or mimetic muscles. Every one of the face muscles are innervated by the facial nerve (CN VII) and also vascularized by the face artery.
This article will comment on the anatomy that the face expression muscles and their function.
|Definition and function||A group of muscles originating greatly from the skeleton of the skull and also inserting onto the skin the the face, which create facial expressions|
|Muscles||Occipitofrontalis, orbicularis oculi, corrugator supercilii, procerus, nasalis, orbicularis oris, levator labii superioris, levator labii superioris alaeque nasi, zygomaticus minor, buccinator, zygomaticus major, levator anguli oris, risorius, depressor anguli oris, depressor labii inferioris, mentalis, platysma|
|Innervation||Facial nerve (CN VII)|
|Blood supply||Facial artery|
Muscles of the mouthMuscles the the noseMuscles the the eyelidMuscles of the cranium and also neckMuscles of the external ear
Muscles of the mouth
The muscles of the mouth, or buccolabial team of muscles, is a broad group of muscle that kind a functional compound the controls the shape and movements the the mouth and lips. There room 11 of this muscles and also their functions include:
The majority of the mouth muscles are linked by a fibromuscular hub onto which their fibers insert. This structure is dubbed the modiolus, the is situated at the angle of the mouth and it is primarily developed by the buccinator, orbicularis oris, risorius, depressor anguli oris and zygomaticus major muscles.
Orbicularis oris muscle
Orbicularis oris muscle
Musculus orbicularis oris
The orbicularis oris is a circular composite muscle that surrounds the mouth and also forms the majority of lips. It is composed of 2 parts; labial and marginal, with the border between them matching to the margin in between the lips and also the surrounding skin. Both portions originate indigenous the modiolus, which is a fibromuscular structure discovered on the lateral political parties of the mouth where numerous facial muscles converge. Native the modiolus, the yarn of the orbicularis oris food medially to fill the peribucal area.The peripheral portion passes medially into the labial locations to insert on the dermis the the lips. In the midline, some of the fibers blend v their particular counterparts, forming the philtrum of the mouth.The marginal portion passes from the modiolus top top one next to the modiolus ~ above the other side the the mouth. Some of the fibers curly upon themselves, developing the vermilion border, i beg your pardon is the demarcation between the lips and also the surrounding skin.
The orbicularis oris is innervated by the buccal and also marginal mandibular branches the the face nerve (CN VII). Its blood supply mainly stems from the superior and also inferior labial branches of facial artery, with contributions native the mental and also infraorbital branches the maxillary artery and also the transverse face branch that superficial temporal artery.
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The function that the orbicularis oris is to develop movements that the lips. A bilateral convulsion of the whole muscle bring the lips together and closes the mouth. An isolated convulsion of particular parts the the muscle can create different motions of the mouth, such as lip pouting, puckering, twisting and others. With these actions, the orbicularis oris facilitates speech and also helps produce various face expressions.