Individual Muscles Attachments, Action, & Structure

2004 ◽  
Author(s):  
Eliot Goldfinger
Keyword(s):  
Upper Eyelid ◽  
Orbicularis Oculi ◽  
Facial Muscles ◽  
Outer Portion ◽  
Lower Jaw ◽  
Direct Form ◽  
The Face ◽  
Jaw Joint ◽  
Action Taking ◽  
Action Structure

The muscles of the head consist of the chewing muscles (temporalis, masseter, and digastric) and the facial muscles (zygomaticus, orbicularis oris, etc.). The chewing muscles are thick and volumetric, and they originate and insert on bone. They open and close the lower jaw, with the action taking place at the jaw joint (temporomandibular joint). The facial muscles are thin. They originate either from the skull or from the surface of other muscles, and they generally insert into other facial muscles or into the skin. When they contract, they move the features of the face (eyes, nose, mouth, ears). As they pull the facial features, they often gather the skin into folds and wrinkles that lie perpendicular to the direction of their muscular fibers (perpendicular to the direction of pull). The mouth region receives the most muscles; therefore, it is the most mobile part of the face. Some facial muscles are so thin that they do not create any direct form on the surface (caninus, malaris, orbicularis oculi), whereas other facial muscles or their tendons may create surface form directly (buccinator, levator labii maxillaris, zygomaticus, and depressor labii mandibularis). Facial muscles are generally more visible on the surface in the horse and the ox than in the dog and feline. The facial muscles, as they move the eyes, nose, mouth, and ears, generate whatever facial expressions animals are capable of producing. . . . • Attachment: A short ligament at the inner corner of the eye, whose inner end attaches to the skull. . . . . . . • Action: Eyelid portion: closes eyelids (blinking), primarily by depressing the upper eyelid. Outer portion: tightens and compresses the skin surrounding the eye, protecting the eyeball. . . . . . . • Structure: The orbicularis oculi is a flat, elliptical muscle consisting of two portions. The eyelid portion lies in the upper and lower eyelids, and the outer portion surrounds the eye and lies on the skull. . . .

scholarly journals GAMBARAN MUSCULI FACIALIS PADA EKSPRESI WAJAH DAN EMOSI DENGAN MENGGUNAKAN FACIAL ACTION CODING SYSTEM PADA CALON PRESIDEN JOKOWI

2015 ◽  
Vol 3 (1) ◽  
Author(s):  
Friska G. Batoteng ◽  
Taufiq F. Pasiak ◽  
Shane H. R. Ticoalu
Keyword(s):  
Facial Expression ◽  
Facial Expressions ◽  
Expression Recognition ◽  
Coding System ◽  
Facial Action Coding System ◽  
Orbicularis Oculi ◽  
Facial Action ◽  
Facial Muscles ◽  
The Face ◽  
Facial Action Coding

Abstract: Facial expression recognition is one way to recognize emotions which has not received much attention. Muscles that form facial expressions known as musculli facial, muscles that move the face and form human facial expressions: happy, sad, angry, fearful, disgusted and surprised which are the six basic expressions of human emotion. Human facial expressions can be measured using FACS (Facial Action Coding System). This study aims to determine the facial muscles which most frequently used and most rarely used, and determine the emotion expression of Jokowi, a presidential candidate, through assessment of the facial muscles using FACS. This study is a retrospective descriptive study. The research samples are the whole photo of Jokowi’s facial expression at first presidential debate in 2014, about 30 photos. Samples were taken from a video debate and confirmed to be a photo using Jokowi’s facial expressions which then further analyzed using FACS. The research showed that the most used action units and facial muscle is AU 1 whose work on frontal muscle pars medialis (14.75%). The least appear muscles on Jokowi’s facial expressions were musculus orbicularis oculi, pars palpebralis and AU 24 musculus obicularis oris (0.82%). The dominant facial expressions was seen in Jokowi was sad facial expression (36.67%).Keywords: musculi facialis, facial expression, expression of emotion, FACSAbstrak: Pengenalan ekspresi wajah adalah salah satu cara untuk mengenali emosi yang belum banyak diperhatikan. Otot-otot yang membentuk ekspresi wajah yaitu musculli facialis yang merupakan otot-otot penggerak wajah dan membentuk ekspresi – ekspresi wajah manusia yaitu bahagia, sedih, marah, takut, jijik dan terkejut yang merupakan 6 dasar ekspresi emosi manusia. Ekspresi wajah manusia dapat diukur dengan menggunakan parameter FACS (Facial Action Coding System). Penelitian ini bertujuan untuk mengetahui musculi facialis yang paling sering digunakan dan yang paling jarang digunakan, serta untuk menentukan ekspresi emosi calon presiden Jokowi. Desain penelitian ini yaitu penelitian deskriptif dengan retrospektif. Sampel penelitian ialah seluruh foto ekspresi wajah Jokowi saat debat calon presiden pertama tahun 2014 sebanyak 30 foto. Sampel diambil dari video debat dan dikonfirmasi menjadi foto kemudian dianalisis lebih lanjut menggunakan FACS. Penelitian ini didapatkan hasil bahwa Musculi yang paling banyak digerakkan, yaitu Musculi frontalis pars medialis (14,75%). Musculi yang paling sedikit muncul pada ekspresi wajah Jokowi yaitu musculus orbicularis oculi, pars palpebralis dan musculus obicularis oris (0,82%). Ekspresi wajah yang dominan dinampakkan oleh Jokowi merupakan ekspresi wajah sedih (36,67%).Kata kunci: musculi facialis, ekspresi wajah, ekspresi emosi, FACS

scholarly journals Assessments of Facial Muscle Thickness by Ultrasound in Younger Adults: Absolute and Relative Reliability

Cosmetics ◽  
2019 ◽  
Vol 6 (4) ◽  
pp. 65 ◽  
Author(s):  
Takashi Abe ◽  
Robert W. Spitz ◽  
Vickie Wong ◽  
Ricardo B. Viana ◽  
Yujiro Yamada ◽  
...  
Keyword(s):  
Muscle Thickness ◽  
Facial Muscle ◽  
Orbicularis Oculi ◽  
Relative Reliability ◽  
Facial Muscles ◽  
Minimal Difference ◽  
The Face ◽  
The Absolute ◽  
Middle Aged Adults ◽  
Absolute Reliability

The absolute reliability (i.e., standard error of measurement and minimal difference) of a measurement is important to consider when assessing training effects. However, the absolute reliability for ultrasound measured facial muscle thickness had not been investigated. In order to examine the absolute and relative reliability of measuring facial muscles, 98 healthy, young, and middle-aged adults (18–40 years) had ultrasound measurements taken twice, separated by an average of three days. Six facial muscles were selected to determine the reliability of facial muscle thickness. The relative reliability (ICC3,1) ranged from 0.425 for the orbicularis oris (inferior) to 0.943 for the frontalis muscle. The absolute reliability (minimal difference) ranged from 0.25 mm for the orbicularis oculi to 1.82 mm for the masseter. The percentage minimal difference was 22%, 25%, 26%, 29%, 21%, and 10% for the frontalis, orbicularis oculi, orbicularis oris (superior), orbicularis oris (inferior), depressor anguli oris, and masseter, respectively. Our results indicated that the relative reliability was similar to that observed previously. The absolute reliability indicated that the measurement error associated with measuring muscle thickness of the face may be greater than that of the trunk/limb muscles. This may be related to the difficulty of accurately determining the borders of each muscle.

Cephalometric features of connective tissue dysplasia manifestation in children and adolescents

2020 ◽  
Vol 20 (3) ◽  
pp. 174-183 ◽  
Author(s):  
B. N. Davydov ◽  
D. A. Domenyuk ◽  
S. V. Dmitrienko ◽  
T. A. Kondratyeva ◽  
Yu. S. Harutyunyan
Keyword(s):  
Connective Tissue ◽  
Morphological Features ◽  
Short Branch ◽  
Lower Jaw ◽  
Carious Lesions ◽  
High Prevalence ◽  
Care Facilities ◽  
The Face ◽  
Connective Tissue Dysplasia ◽  
Brain Parts

Relevance. The high prevalence of dysplastic disorders involving connective tissue, and its negative effecton the development of dentoalveolar anomalies, carious and non-carious lesions of the teeth, periodontopathy, temporomandibular joint issues in the child population, lay the basis for improving diagnostics algorithms. Enhancing the already available standards is of greatest importance for children at the initial stages of diagnostics when evaluating the external signs of dysplastic disorders.Purpose – improving diagnostics algorithms for connective tissue dysplasia (CTD) in children in primary dental care facilities based on the evaluation of external phenotype signs and maxillofacial morphological features.Materials and methods. Depending on the external phenotype manifestations severity, as well as on laboratory, clinical and instrumental signs, the 92 children with CTD were divided into groups with mild, moderate and severe degrees of undifferentiated dysplasia. Gnathometric and biometric examinations of the maxillofacial area were performed through traditional methods, whereas the diagnosis was set following the generally accepted classifications. The diagnosis confirmation implied evaluation through cone beam computed imaging.Results. The nature and the intensity of morphofunctional disorders in the craniofacial structures (“small” stigmas) depend on the severity of connective tissue dysplastic disorders.Conclusions. The change direction vector in the facial and brain parts of cranium in children with CTD is aimed at increasing hypoplastic tendencies and dolichocephalia, proof to that being the following constitutional and morphological features: the prevalence of the vertical type of face skeleton growth over the horizontal and neutral ones; a convex face profile with a disproportionate general heights of the face skeleton; reduction of latitudinal with an increase in altitude facial parameters; a narrow short branch of the lower jaw; the upper jaw displaced downwards and forward; a decrease in the size of the apical basis of the lower dentition, the lower jaw body, as well as the height and width of the lower jaw branches. 

Histopathologic Findings of the Orbicularis Oculi in Upper Eyelid Aging

2012 ◽  
Vol 14 (4) ◽  
pp. 253-257
Author(s):  
Hwa Lee ◽  
Minsoo Park ◽  
Jongmi Lee ◽  
Eung Seok Lee ◽  
Sehyun Baek
Keyword(s):  
Upper Eyelid ◽  
Orbicularis Oculi ◽  
Histopathologic Findings

A new species of Zhangixalus (Anura: Rhacophoridae), previously confused with Zhangixalus smaragdinus (Blyth, 1852)

Zootaxa ◽  
2019 ◽  
Vol 4711 (2) ◽  
pp. 275-292
Author(s):  
GUOHUA YU ◽  
HONG HUI ◽  
MIAN HOU ◽  
ZHENGJUN WU ◽  
DINGQI RAO ◽  
...  
Keyword(s):  
New Species ◽  
Pairwise Distance ◽  
Outer Side ◽  
Molecular Evidence ◽  
Adult Males ◽  
Upper Eyelid ◽  
White Stripe ◽  
Lower Jaw ◽  
Southern Yunnan Of China ◽  
A New Species

We describe a new species of Zhangixalus from southern Yunnan of China, Vietnam, and Thailand based on morphological and molecular evidence. The new species had been confused with Zhangixalus smaragdinus (Blyth, 1852) in the past. Zhangixalus pachyproctus sp. nov. can be distinguished from Z. smaragdinus morphologically by the protruding vent in adult males, large thick grey reticular mottles below the white stripe on flank, more oblique snout in profile and wider head, longer snout, greater internarial distance, larger tympanum and longer hindlimb. The new species can be distinguished from other species of Zhangixalus with green dorsum by the following combination of characters: body size larger (SVL of adult males: 74.2–83.3 mm; SVL of adult female: 102.4 mm); dorsum smooth; narrow white stripes along edge of the lower jaw, body sides, outer side of limbs and above the vent; absence of brown bands on canthus rostralis, upper eyelid and supratympanic fold; webbing between fingers and toes complete except between the first two fingers; and internal single subgular vocal sac. Phylogeny based on comparison of 16S rRNA sequences suggests that the new species is the sister taxon to Z. smaragdinus and the two species differ by 7.63% in the uncorrected pairwise distance of 16S sequences. 

scholarly journals Aesthetic Medicine

2019 ◽  
Vol 4 (5) ◽  
Keyword(s):  
Muscle Tone ◽  
Upper Eyelid ◽  
Aesthetic Medicine ◽  
Age Related ◽  
The Face ◽  
Injection Techniques ◽  
Physiological Type ◽  
Age Related Changes ◽  
Morph Type

GalynaViktorovnaKhrushch plastic surgeon, maxillofacial surgeon, international candidat ASPS, Periorbital area is worthily considered as one of the most complicated regions in terms of correction of the age-related changes using injection techniques of medical aesthetics. According to the classification of I.I. Kolgunenko Russian (1974), tired morph type of age-related changes which is the most physiological type of aging, incorporates changes mainly focused in the middle third of the face, including in the periorbital area. These changes include the formation of grooves (tear trough, palpebromalar groove, nasojugal groove) (Figure 1), dark under-eye circles, mimic wrinkles formation, fat compartment displacement, change in mimic muscle tone, stretching of ligamentous structures, overhang of the upper eyelid.

scholarly journals Anthropological reconstruction of the physical appearance of the «king» and «queen» from the early Scythian burial and memorial complex of Arzhan-2

2020 ◽  
pp. 112-122
Author(s):  
E.V. Veselovskaya ◽  
R.M. Galeev
Keyword(s):  
Physical Appearance ◽  
Archaeological Site ◽  
Broad Face ◽  
Average Width ◽  
Work Related ◽  
Lower Jaw ◽  
Central Asian ◽  
The Face ◽  
Academy Of Sciences ◽  
Tyva Republic

Arzhan-2, the archaeological site of world significance, a national treasure of peoples of Tuva and Russia, located in the «Valley of Kings» (Piy-Khemsk District, Tyva Republic), was investigated in 2001–2004 by the Central Asian Archaeological Expedition of the State Hermitage Museum headed by K.V. Chugunov. The sites has been dated to the 7th c. BC and attributed to the Scythian-Siberian cultural community. When exploring the «royal» burial of the early Scythian site of Arzhan-2, the scientists faced the questions of the origin of the buried, periodization and chronology of the monument, its archaeological-cultural attribution, the autochthonous nature of the population that left it, and its relationship with other Eurasian early nomadic cultures. The present study is addressing the most important issue of the appearance of the buried people and characteristics of their anthropological type. The material for the study was comprised of male and female skulls from burial 5 of Arzhan-2 mound. The article describes in detail the process of reconstruction of the physical appearance of the deceased and provides examples of calculating ante mortem parameters based on craniometric measurements. The complex stages of preliminary work related to the restoration of skulls and manufacturing of their exact copies are highlighted. The results of the physical appearance reconstruction are presented in the form of visual museum objects — sculptural portraits. The scientific reconstruction of the ante mortem appearance on skulls of the «king» and «queen» was carried out in the Laboratory of Anthropological Reconstruction of the Institute of Ethnology and Anthropology of the Russian Academy of Sciences by anthropologists Drs E.V. Veselovskaya and R.M. Galeev. In anthropological terms, the buried show a peculiar mosaic of Caucasoid and Mongoloid features. They are characterized by brachycephaly and dome-shaped head, with notably developed rugosity of the supercilium in the man and its absence in the woman. For the man, an average width of the face and a narrow forehead of medium height are noted. The woman has broad face and forehead, the height of the forehead is average. Both portraits are characterized by prominent position of eyeballs and large eyes. Man’s nose is short, prominent, with convex dorsum. Woman’s nose has a wavy dorsum, and is slightly prominent. On the male portrait, the cheekbones are moderate, on the female one — high and prominent. Faces of the «royal» persons are flattened in the upper part, with a certain degree of alveolar prognathism. The lower jaw of the man is medium in size, narrow in the corners. For the woman, some gracility of the lower jaw can be noted.

scholarly journals Mammalian development does not recapitulate suspected key transformations in the evolution of the mammalian middle ear

2015 ◽  
Author(s):  
Héctor Ramirez-Chaves ◽  
Stephen Wroe ◽  
Lynne Selwood ◽  
Lyn Hinds ◽  
Chris Leigh ◽  
...  
Keyword(s):  
Middle Ear ◽  
Mammalian Development ◽  
Positional Change ◽  
Lower Jaw ◽  
Dental Eruption ◽  
Mesozoic Mammals ◽  
Differential Positioning ◽  
Jaw Joint ◽  
Early Mammalian Development ◽  
Land Vertebrates

The tympanic ring, malleus and incus of the mammalian middle ear (MME) derive from the ancestral primary jaw joint of land vertebrates. In Mesozoic mammals, evolutionary detachment of the MME from the lower jaw occurred when Meckel’s cartilage - the last connection between MME and dentary – disappeared. This disappearance is famously recapitulated in early mammalian development. Further developmental recapitulation of Mesozoic MME detachment is thought to occur in the form of negative allometry and posterior/medial replacement of MME bones relative to the jaw joint. However, despite being widely accepted, such detailed recapitulation scenarios have never been quantified. Here we show, based on µCT scans of developmental series of several marsupials and monotremes, that negative allometry of MME bones relative to the skull occurs only after MME detachment, ruling it out as a developmental detachment trigger; additionally, there is no positional change of ectotympanic or malleus relative to the dentary. Differential positioning of MME bones in the two monotreme species is also not developmentally recapitulated. Our results challenge the developmental prerequisites of widely accepted evolutionary scenarios regarding MME detachment. Rather, we observe an association of MME detachment and dental eruption, suggesting a detachment trigger relating to the onset of dentary function.

scholarly journals Chronic suppurative mandibular osteomyelitis presenting as soft tissue swelling and trismus: A case report

2013 ◽  
Vol 2 (2) ◽  
pp. 197-199
Author(s):  
K Ahmad ◽  
S Ansari ◽  
K Dhungel ◽  
MK Gupta ◽  
MF Amanullah ◽  
...  
Keyword(s):  
Case Report ◽  
Soft Tissue ◽  
Clinical Symptom ◽  
Rare Condition ◽  
Medical Sciences ◽  
Lower Jaw ◽  
Soft Tissue Swelling ◽  
The Face ◽  
Fascial Spaces ◽  
Experience Pain

Osteomyelitis of the mandible is a rare condition and it could be a serious complication of untreated odontogenic infection. Classically, patient with osteomyelitis of the mandible would experience pain and swelling over the affected side of the face. CT is usually indicated when there is extension of the infection into the adjacent soft tissue and fascial spaces which could be the presenting clinical symptom. Hereby, we present a case of mandibular osteomyelitis in an 11 year old girl who presented with pain and swelling in left lower jaw followed by extraction of tooth, diagnosed on CT followed by surgical management. Nepal Journal of Medical Sciences | Volume 02 | Number 02 | July-December 2013 | Page 197-199  DOI: http://dx.doi.org/10.3126/njms.v2i2.8978  

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