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Frown
A frown (also known as a scowl) is a facial expression in which the eyebrows are brought together, and the forehead is wrinkled, usually indicating displeasure, sadness or worry, or less often confusion or concentration. The appearance of a frown varies by culture. An alternative usage in North America is thought of as an expression of the mouth. In those cases when used iconically, as with an emoticon, it is entirely presented by the curve of the lips forming a down-open curve. The mouth expression is also commonly referred to in the colloquial English phrase, especially in the United States, to "turn that frown upside down" which indicates changing from sad to happy. Description Charles Darwin described the primary act of frowning as the furrowing of the brow which leads to a rise in the upper lip and a down-turning of the corners of the mouth. While the appearance of a frown varies from culture to culture, there appears to be some degree of universality to the recognition o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Emoticon
An emoticon (, , rarely , ), short for "emotion icon", also known simply as an emote, is a pictorial representation of a facial expression using characters—usually punctuation marks, numbers, and letters—to express a person's feelings, mood or reaction, or as a time-saving method. The first ASCII emoticons are generally credited to computer scientist Scott Fahlman, who proposed what came to be known as "smileys":-) and :-(in a message on the bulletin board system (BBS) of Carnegie Mellon University in 1982. In Western countries, emoticons are usually written at a right angle to the direction of the text. Users from Japan popularized a kind of emoticon called kaomoji, utilizing the larger character sets required for Japanese, that can be understood without tilting one's head to the left. This style arose on ASCII NET of Japan in 1986. As SMS mobile text messaging and the Internet became widespread in the late 1990s, emoticons became increasingly popular and were commonly ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Procerus
The procerus muscle (or pyramidalis nasi) is a small pyramidal slip of muscle deep to the superior orbital nerve, artery and vein. ''Procerus'' is Latin, meaning tall or extended. Structure The procerus muscle arises by tendinous fibers from the fascia covering the lower part of the nasal bone and upper part of the lateral nasal cartilage. It is inserted into the skin over the lower part of the forehead between the two eyebrows on either side of the midline, its fibers merging with those of the frontalis muscle. Nerve supply The procerus muscle is supplied by the temporal branch of the facial nerve (VII). It may also be supplied by other branches of the facial nerve, which can be varied. Function The procerus muscle helps to pull that part of the skin between the eyebrows downwards, which assists in flaring the nostrils. It can also contribute to an expression of anger. Procerus is supplied by temporal and lower zygomatic branches from the facial nerve. A supply from it ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Smiling
A smile is a facial expression formed primarily by flexing the muscles at the sides of the mouth. Some smiles include a contraction of the muscles at the corner of the eyes, an action known as a Duchenne smile. Among humans, a smile expresses delight, sociability, happiness, joy, or amusement. It is distinct from a similar but usually involuntary expression of anxiety known as a grimace. Although cross-cultural studies have shown that smiling is a means of communication throughout the world, there are large differences among different cultures, religions, and societies, with some using smiles to convey confusion or embarrassment. Evolutionary background Primatologist Signe Preuschoft traces the smile back over 30 million years of evolution to a "fear grin" stemming from monkeys and apes, who often used barely clenched teeth to portray to predators that they were harmless or to signal submission to more dominant group members. The smile may have evolved differently among sp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Corrugator Supercilii
The corrugator supercilii muscle is a small, narrow, pyramidal muscle close to the eye. It arises from the medial end of the superciliary arch, and inserts into the deep surface of the skin of the eyebrow. It draws the eyebrow downward and medially, producing the vertical wrinkles of the forehead. Structure The corrugator supercilii muscle is located at the medial end of the eyebrow, beneath the frontalis muscle and just above the orbicularis oculi muscle. It arises from the medial end of the superciliary arch. Its fibers pass upward and laterally, between the palpebral and orbital portions of the orbicularis oculi muscle. It inserts into the deep surface of the skin of the eyebrow, above the middle of the orbital arch. Relations The supratrochlear nerve passes by the corrugator supercilii muscle between it and the frontalis muscle. Function The corrugator supercilii muscle draws the eyebrow downward and medially, producing the vertical wrinkles of the forehead. It is th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Platysma
The platysma muscle is a superficial muscle of the human neck that overlaps the sternocleidomastoid. It covers the anterior surface of the neck superficially. When it contracts, it produces a slight wrinkling of the neck, and a "bowstring" effect on either side of the neck. Structure The platysma muscle is a broad sheet of muscle arising from the fascia covering the upper parts of the pectoralis major muscle and deltoid muscle. Its fibers cross the clavicle, and proceed obliquely upward and medially along the side of the neck. This leaves the inferior part of the neck in the midline deficient of significant muscle cover. Fibres at the front of the muscle from the left and right sides intermingle together below and behind the mandibular symphysis, the junction where the two lateral halves of the mandible are fused at an early period of life (although not a true symphysis). Fibres at the back of the muscle cross the mandible, some being inserted into the bone below the oblique line ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Charles Darwin
Charles Robert Darwin ( ; 12 February 1809 – 19 April 1882) was an English naturalist, geologist, and biologist, widely known for his contributions to evolutionary biology. His proposition that all species of life have descended from a common ancestor is now generally accepted and considered a fundamental concept in science. In a joint publication with Alfred Russel Wallace, he introduced his scientific theory that this branching pattern of evolution resulted from a process he called natural selection, in which the struggle for existence has a similar effect to the artificial selection involved in selective breeding. Darwin has been described as one of the most influential figures in human history and was honoured by burial in Westminster Abbey. Darwin's early interest in nature led him to neglect his medical education at the University of Edinburgh; instead, he helped to investigate marine invertebrates. His studies at the University of Cambridge's Christ's Co ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Personality And Social Psychology Bulletin
''Personality and Social Psychology Bulletin'' is a scientific journal published monthly published by SAGE Publications for the Society for Personality and Social Psychology (SPSP). The journal's senior editorial team include: Editor Michael D. Robinson (North Dakota State University), Co-Editor Yuen J. Huo (University of California, Los Angeles), Co-Editor Emily A. Impett (University of Toronto) and Co-Editor Benjamin M. Wilkowski (University of Wyoming). This journal is a member of the Committee on Publication Ethics (COPE). Abstracting and indexing ''Personality and Social Psychology Bulletin'' is abstracted and indexed in MEDLINE, Scopus and the Social Sciences Citation Index. According to Thomson Reuters Thomson Reuters Corporation ( ) is a Canadian multinational media conglomerate. The company was founded in Toronto, Ontario, Canada, where it is headquartered at the Bay Adelaide Centre. Thomson Reuters was created by the Thomson Corpo ... 2019 '' Journal Cita ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Levator Labii Superioris
The levator labii superioris (pl. ''levatores labii superioris'', also called quadratus labii superioris, pl. ''quadrati labii superioris'') is a muscle of the human body used in facial expression. It is a broad sheet, the origin of which extends from the side of the nose to the zygomatic bone. Structure Its medial fibers form the ''angular head'' (also known as the levator labii superioris alaeque nasi muscle,) which arises by a pointed extremity from the upper part of the frontal process of the maxilla and passing obliquely downward and lateralward divides into two slips. One of these is inserted into the greater alar cartilage and skin of the nose; the other is prolonged into the lateral part of the upper lip, blending with the infraorbital head and with the orbicularis oris. The intermediate portion or ''infraorbital head'' arises from the lower margin of the orbit immediately above the infraorbital foramen, some of its fibers being attached to the maxilla, others to the z ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Orbicularis Oculi
The orbicularis oculi is a muscle in the face that closes the eyelids. It arises from the nasal part of the frontal bone, from the frontal process of the maxilla in front of the lacrimal groove, and from the anterior surface and borders of a short fibrous band, the medial palpebral ligament. From this origin, the fibers are directed laterally, forming a broad and thin layer, which occupies the eyelids or palpebræ, surrounds the circumference of the orbit, and spreads over the temple, and downward on the cheek. Structure There are at least 3 clearly defined sections of the orbicularis muscle. However, it is not clear whether the lacrimal section is a separate section, or whether it is just an extension of the preseptal and pretarsal sections. Orbital orbicularis The orbital portion is thicker and of a reddish color; its fibers form a complete ellipse without interruption at the lateral palpebral commissure; the upper fibers of this portion blend with the frontalis and corrugato ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zygomaticus Major
The zygomaticus major muscle is a muscle of the human body. It extends from each zygomatic arch (cheekbone) to the corners of the mouth. It is a muscle of facial expression which draws the angle of the mouth superiorly and posteriorly to allow one to smile. Bifid zygomaticus major muscle is a notable variant, and may cause cheek dimples. Structure The zygomaticus major muscle originates from the upper margin of the temporal process, part of the lateral surface of the zygomatic bone. It inserts into tissue at the corner of the mouth. Nerve supply The zygomaticus major muscle is supplied by a buccal branch and a zygomatic branch of the facial nerve (VII). Variation The zygomaticus major muscle may occur in a bifid form, with two fascicles that are partially or completely separate from each other but adjacent. Usually a single unit, dimples are caused by variations in form. It is thought that cheek dimples are caused by bifid zygomaticus major muscle. Function The zygomat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
University Of Chicago Medical Center
The University of Chicago Medical Center (UChicago Medicine) is a nationally ranked academic medical center located in Hyde Park on the South Side of Chicago. It is the flagship campus for The University of Chicago Medicine system and was established in 1898. Affiliated with and located on The University of Chicago campus, it also serves as the teaching hospital for Pritzker School of Medicine. Primary medical facilities on campus include the Center for Care and Discovery, Bernard A. Mitchell Hospital, and Comer Children's Hospital. In 2019, '' U.S. News & World Report'' ranked UChicago Medicine the second-best hospital in both Chicago and Illinois behind Northwestern Memorial Hospital. History The University of Chicago Medicine and Biological Sciences, one of the nation's leading academic medical institutions, was founded in 1927 when it first opened to patients. Today, it comprises The University of Chicago Pritzker School of Medicine; The University of Chicago Biological Scie ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Discovery Fit & Health
Discovery Life is an American cable television network owned by Warner Bros. Discovery. Launched on February 1, 2011 as Discovery Fit & Health, it was the result of the merger of Discovery Health Channel and FitTV (following the former's replacement in its channel space by OWN), and focuses on reality programming dealing with "life events". Its programming is drawn from the libraries of its predecessors and TLC. As of February 2015, approximately 46,696,000 American households (40.1% of households with television) received Discovery Life. History On January 17, 2011, Discovery Communications announced that FitTV would be re-launched as Discovery Fit & Health on February 1, 2011. Its formation was the result of Discovery Health's replacement with the Oprah Winfrey Network (OWN) at the beginning of the year; the company noted that Discovery Health's programming still had loyal viewership, even as the network was being wound down in favor of OWN. Initially, the channel's progr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
