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Sagittal Keel
In the human skull, a sagittal keel, or sagittal torus, is a thickening of part or all of the midline of the frontal bone, or parietal bones where they meet along the sagittal suture, or on both bones. Sagittal keels differ from sagittal crests, which are found in some earlier hominins (notably the genus ''Paranthropus'') and in a range of other mammals. While a proper crest functions in anchoring the muscles of mastication to the cranium, the keel is lower and rounded in cross-section, and the jaw muscles do not attach to it. Sagittal keels occur in several early human species, most noticeably in ''Homo erectus'', occasionally in ''Homo heidelbergensis'' and in some Upper Paleolithic ''Homo sapiens'' specimens. Most modern ''Homo sapiens'' groups have lost them, likely as part of the general trend toward thinning of the cranial bones to make room for larger brains during the Pleistocene. However, there is a small portion of modern humans who have the feature, but its function and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Skull Pekingman
The skull, or cranium, is typically a Bone, bony enclosure around the brain of a vertebrate. In some fish, and amphibians, the skull is of cartilage. The skull is at the head end of the vertebrate. In the human, the skull comprises two prominent parts: the neurocranium and the facial skeleton, which evolution, evolved from the first pharyngeal arch. The skull forms the frontmost portion of the axial skeleton and is a product of cephalization and brain vesicle, vesicular enlargement of the brain, with several special senses structures such as the eyes, ears, nose, tongue and, in fish, specialized touch, tactile organ (biology), organs such as barbel (zoology), barbels near the mouth. The skull is composed of three types of bone: cranial bones, facial bones and ossicles, which is made up of a number of fused flat bone, flat and irregular bones. The cranial bones are joined at firm fibrous junctions called suture (joint), sutures and contains many foramina, fossa (anatomy), fos ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Upper Paleolithic
The Upper Paleolithic (or Upper Palaeolithic) is the third and last subdivision of the Paleolithic or Old Stone Age. Very broadly, it dates to between 50,000 and 12,000 years ago (the beginning of the Holocene), according to some theories coinciding with the appearance of behavioral modernity in early modern humans. It is followed by the Mesolithic. Anatomically modern humans (i.e. ''Homo sapiens'') are believed to have emerged in Africa around 300,000 years ago. It has been argued by some that their ways of life changed relatively little from that of archaic humans of the Middle Paleolithic, until about 50,000 years ago, when there was a marked increase in the diversity of Artefact (archaeology), artefacts found associated with modern human remains. This period coincides with the most common date assigned to early human migrations, expansion of modern humans from Africa throughout Asia and Eurasia, which may have contributed to the Neanderthal extinction, extinction of th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Occipital Bun
An occipital bun, also called an occipital spur, occipital knob, chignon hook or inion hook, is a prominent bulge or projection of the occipital bone at the back of the human skull, skull. It is important in scientific descriptions of classic Neanderthal crania. It is found among Archaic humans, archaic ''Homo'' species (including Neanderthals), as well as Late Pleistocene, Upper Pleistocene ''Human, Homo sapiens'' and present-day human populations. Occipital buns in Neanderthals The occipital bun is a protuberance of the occipital bone. Its size and shape has been compared to that of a dinner roll. It is a quintessential trait of Neanderthals, though it is a trend in archaic ''Homo'' species. The true purpose of the occipital bun has not yet been defined. However, some studies have found possible evolutionary purposes. In a study published in ''Proceedings of the Royal Society B'', the occipital bun has been attributed to the enlargement of the visual cortex; this is hypot ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Homo Sapiens Sapiens
Human taxonomy is the classification of the human species within zoological taxonomy. The systematic genus, ''Homo'', is designed to include both anatomically modern humans and extinct varieties of archaic humans. Current humans are classified as subspecies to ''Homo'', differentiated, according to some, from the direct ancestor, '' Homo sapiens idaltu'' (with some other research instead classifying ''idaltu'' and current humans as belonging to the same subspecies). Since the introduction of systematic names in the 18th century, knowledge of human evolution has increased significantly, and a number of intermediate taxa have been proposed in the 20th and early 21st centuries. The most widely accepted taxonomy grouping takes the genus ''Homo'' as originating between two and three million years ago, divided into at least two species, archaic ''Homo erectus'' and modern ''Homo sapiens'', with about a dozen further suggestions for species without universal recognition. The genus '' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shi Yan Ming
Shi Yan Ming (born Duan Gen Shan; February 13, 1964) is a 34th generation Shaolin warrior monk, teacher and actor, best known as the founder of the USA Shaolin Temple. Trained at the Shaolin Temple in Henan, People's Republic of China (PRC) since the age of five, Shi Yan Ming came to the United States in 1992, before opening the USA Shaolin Temple in Manhattan, where he has taught hundreds of students, including numerous celebrities. He has made various media appearances in television, film and print, including National Geographic, PBS, History, ''Time'' magazine, and the 1999 American samurai action film, '' Ghost Dog: The Way of the Samurai''. Early life Shi Yan Ming was born Duan Gen Shan in Zhumadian in Henan Province, China, on Chinese New Year's, February 13, 1964, the year of the Dragon, the seventh of nine children. His father grew up in a family so poor that they were essentially homeless, and begged for food door to door. Duan's father, who never went to school, slep ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Patrick Stewart
Sir Patrick Stewart (born 13 July 1940) is an English actor. With a career spanning over seven decades of Patrick Stewart on stage and screen, stage and screen, he has received List of awards and nominations received by Patrick Stewart, various accolades, including two Laurence Olivier Awards, Olivier Awards and a Grammy Awards, Grammy Award, as well as nominations for a Tony Awards, Tony Award, three Golden Globe Awards, four Emmy Awards, and three Screen Actors Guild Awards. He was Knight Bachelor, knighted by Queen Elizabeth II for services to drama in 2010. In 1966, Stewart became a member of the Royal Shakespeare Company. He made his Broadway theatre, Broadway theatre debut in 1971 in a production of ''A Midsummer Night's Dream''. In 1979, he received the Laurence Olivier Award for Best Actor in a Supporting Role for his performance in ''Antony and Cleopatra'' in the West End theatre, West End. His first television role was in ''Coronation Street'' in 1967. His first major ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Etiology
Etiology (; alternatively spelled aetiology or ætiology) is the study of causation or origination. The word is derived from the Greek word ''()'', meaning "giving a reason for" (). More completely, etiology is the study of the causes, origins, or reasons behind the way that things are, or the way they function, or it can refer to the causes themselves. The word is commonly used in medicine (pertaining to causes of disease or illness) and in philosophy, but also in physics, biology, psychology, political science, geography, cosmology, spatial analysis and theology in reference to the causes or origins of various phenomena. In the past, when many physical phenomena were not well understood or when histories were not recorded, myths often arose to provide etiologies. Thus, an etiological myth, or origin myth, is a myth that has arisen, been told over time or written to explain the origins of various social or natural phenomena. For example, Virgil's ''Aeneid'' is a national myth ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thomson/Wadsworth
Cengage Group is an American educational content, technology, and services company for higher education, K–12, professional, and library markets. It operates in more than 20 countries around the world.(June 27, 2014Global Publishing Leaders 2014: Cengage publishersweekly.comCompany Info – Wall Street JournalCengage LearningCompany Overview of Cengage Learning, Inc. BloombergBusiness Company information The company is headquartered in , Massachusetts, and has some 5,000 employees worldwide across nearly 38 countries. It was headquartered at its |
Pleistocene
The Pleistocene ( ; referred to colloquially as the ''ice age, Ice Age'') is the geological epoch (geology), epoch that lasted from to 11,700 years ago, spanning the Earth's most recent period of repeated glaciations. Before a change was finally confirmed in 2009 by the International Union of Geological Sciences, the cutoff of the Pleistocene and the preceding Pliocene was regarded as being 1.806 million years Before Present (BP). Publications from earlier years may use either definition of the period. The end of the Pleistocene corresponds with the end of the last glacial period and also with the end of the Paleolithic age used in archaeology. The name is a combination of Ancient Greek () 'most' and (; Latinized as ) 'new'. The aridification and cooling trends of the preceding Neogene were continued in the Pleistocene. The climate was strongly variable depending on the glacial cycle, oscillating between cold Glacial period, glacial periods and warmer Interglacial, int ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Homo Sapiens
Humans (''Homo sapiens'') or modern humans are the most common and widespread species of primate, and the last surviving species of the genus ''Homo''. They are Hominidae, great apes characterized by their Prehistory of nakedness and clothing#Evolution of hairlessness, hairlessness, bipedality, bipedalism, and high Human intelligence, intelligence. Humans have large Human brain, brains, enabling more advanced cognitive skills that facilitate successful adaptation to varied environments, development of sophisticated tools, and formation of complex social structures and civilizations. Humans are Sociality, highly social, with individual humans tending to belong to a Level of analysis, multi-layered network of distinct social groups — from families and peer groups to corporations and State (polity), political states. As such, social interactions between humans have established a wide variety of Value theory, values, norm (sociology), social norms, languages, and traditions (co ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Homo Heidelbergensis
''Homo heidelbergensis'' is a species of archaic human from the Middle Pleistocene of Europe and Africa, as well as potentially Asia depending on the taxonomic convention used. The species-level classification of ''Homo'' during the Middle Pleistocene is controversial, called the "muddle in the middle", owing to the wide anatomical range of variation that populations exhibited during this time. ''H. heidelbergensis'' has been regarded as either the last common ancestor of modern humans, Neanderthals, and Denisovans; or as a completely separate lineage. ''H. heidelbergensis'' was species description, described by German anthropologist Otto Schoetensack in 1908 based on a jawbone, Mauer 1, from a sand mining, sand pit near the village of Mauer (Baden), Mauer — southeast of Heidelberg. It was the oldest identified human fossil in Europe, and Schoetensack described it as an antediluvian race (before the Great Flood) which would eventually evolve into living Europeans. By the mid-2 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sagittal Keel
In the human skull, a sagittal keel, or sagittal torus, is a thickening of part or all of the midline of the frontal bone, or parietal bones where they meet along the sagittal suture, or on both bones. Sagittal keels differ from sagittal crests, which are found in some earlier hominins (notably the genus ''Paranthropus'') and in a range of other mammals. While a proper crest functions in anchoring the muscles of mastication to the cranium, the keel is lower and rounded in cross-section, and the jaw muscles do not attach to it. Sagittal keels occur in several early human species, most noticeably in ''Homo erectus'', occasionally in ''Homo heidelbergensis'' and in some Upper Paleolithic ''Homo sapiens'' specimens. Most modern ''Homo sapiens'' groups have lost them, likely as part of the general trend toward thinning of the cranial bones to make room for larger brains during the Pleistocene. However, there is a small portion of modern humans who have the feature, but its function and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
