Brain
The first vertebrates appeared over 500 million years ago (Mya), during the Cambrian period, and may have resembled the modern hagfish in form. Sharks appeared about 450 Mya, amphibians about 400 Mya, reptiles about 350 Mya, and mammals about 200 Mya. Each species has an equally long evolutionary history, but the brains of modern hagfishes, lampreys, sharks, amphibians, reptiles, and mammals show a gradient of size and complexity that roughly follows the evolutionary sequence. All of these brains contain the same set of basic anatomical components, but many are rudimentary in the hagfish, whereas in mammals the foremost part (the telencephalon) is greatly elaborated and expanded.
Brain
The Roman physician Galen also argued for the importance of the brain, and theorized in some depth about how it might work. Galen traced out the anatomical relationships among brain, nerves, and muscles, demonstrating that all muscles in the body are connected to the brain through a branching network of nerves. He postulated that nerves activate muscles mechanically by carrying a mysterious substance he called pneumata psychikon, usually translated as "animal spirits". Galen's ideas were widely known during the Middle Ages, but not much further progress came until the Renaissance, when detailed anatomical study resumed, combined with the theoretical speculations of René Descartes and those who followed him. Descartes, like Galen, thought of the nervous system in hydraulic terms. He believed that the highest cognitive functions are carried out by a non-physical res cogitans, but that the majority of behaviors of humans, and all behaviors of animals, could be explained mechanistically.
Journal of Near Eastern Studies
The "Journal of Near Eastern Studies" is an academic journal published by the University of Chicago Press, covering research on the ancient and medieval civilisations of the Near East, including their archaeology, art, history, literature, linguistics, religion, law, and science. JNES is devoted to the study of the civilizations of the Near East from prehistory to the end of the Ottoman period in 1922. "JNES" embraces a uniquely broad scope of time, place, and topic, including contributions from scholars of international reputation on topics in Assyriology, Egyptology, Hittitology, Hebrew Bible, and allied ancient studies, as well as a second area of emphasis in early, medieval, and early-modern Islamic studies. The disciplinary range of the journal runs from history and language to religion and literature to archaeology and art history.
Small intestine
Small Intestine Diagram showing the small intestine and surrounding structures Details Artery Superior mesenteric artery Vein Hepatic portal vein Nerve Celiac ganglia, vagus Lymph Intestinal lymph trunk Identifiers Latin Intestinum tenue MeSH A03. 556.124. 684 Code 4453467 Dorlands / Elsevier Small intestine r TA A05. 6.01. 001 FMA 7200 Anatomical terminology (edit on Wikidata)
Middle Ages
In the history of Europe, the Middle Ages (or Medieval Period) lasted from the 5th to the 15th century. It began with the fall of the Western Roman Empire and merged into the Renaissance and the Age of Discovery. The Middle Ages is the middle period of the three traditional divisions of Western history: classical antiquity, the medieval period, and the modern period. The medieval period is itself subdivided into the Early, High, and Late Middle Ages.
Glacier
Mean speeds vary greatly, but is typically around 1 m (3 ft) per day. There may be no motion in stagnant areas; for example, in parts of Alaska, trees can establish themselves on surface sediment deposits. In other cases, glaciers can move as fast as 20–30 m (70–100 ft) per day, such as in Greenland's Jakobshavn Isbræ (Greenlandic: Sermeq Kujalleq). Velocity increases with increasing slope, increasing thickness, increasing snowfall, increasing longitudinal confinement, increasing basal temperature, increasing meltwater production and reduced bed hardness.
Quadriceps femoris muscle
Quadriceps femoris muscle Quadriceps femoris, with different muscles in different colors. rectus femoris - blue vastus lateralis - yellow vastus intermedius - green vastus medialis - red Details Origin Combined rectus femoris and vastus muscles Insertion Tibial tuberosity Artery Femoral artery Nerve Femoral nerve Actions Knee extension; Hip flexion (Rectus femoris only) Identifiers Latin Musculus quadriceps femoris Dorlands / Elsevier Quadriceps femoris muscle TA A04. 7.02. 017 FMA 22428 Anatomical terms of muscle (edit on Wikidata)
Race (human categorization)
Morning (2008) looked at high school biology textbooks during the 1952-2002 period and initially found a similar pattern with only 35% directly discussing race in the 1983–92 period from initially 92% doing so. However, this has increased somewhat after this to 43%. More indirect and brief discussions of race in the context of medical disorders have increased from none to 93% of textbooks. In general, the material on race has moved from surface traits to genetics and evolutionary history. The study argues that the textbooks' fundamental message about the existence of races has changed little.
Mesozoic
Sea levels began to rise during the Jurassic, which was probably caused by an increase in seafloor spreading. The formation of new crust beneath the surface displaced ocean waters by as much as 200 m (656 ft) more than today, which flooded coastal areas. Furthermore, Pangaea began to rift into smaller divisions, bringing more land area in contact with the ocean by forming the Tethys Sea. Temperatures continued to increase and began to stabilize. Humidity also increased with the proximity of water, and deserts retreated.
European migrant crisis
The European migrant crisis, or the European refugee crisis, is a term given to a period beginning in 2015 when rising numbers of people arrived in the European Union (EU), travelling across the Mediterranean Sea or overland through Southeast Europe. It is part of a pattern of increased immigration to Europe from other continents which began in the late 20th century and which has encountered resistance in many European countries.
Renaissance
The Renaissance (UK: / rɪˈneɪsəns /, US: / rɛnəˈsɑːns /) is a period in European history, covering the span between the 14th and 17th centuries. It is an extension of the Middle Ages, and is bridged by the Age of Enlightenment to modern history. It grew in fragments, with the very first traces found seemingly in Italy, coming to cover much of Europe, for some scholars marking the beginning of the modern age.
History of Australia
A First Fleet of British ships arrived at Botany Bay in January 1788 to establish a penal colony. In the century that followed, the British established other colonies on the continent, and European explorers ventured into its interior. Indigenous Australians were greatly weakened and their numbers diminished by introduced diseases and conflict with the colonists during this period.
History of Australia
A First Fleet of British ships arrived at Botany Bay in January 1788 to establish a penal colony, the first colony on the Australian mainland. In the century that followed, the British established other colonies on the continent, and European explorers ventured into its interior. Indigenous Australians were greatly weakened and their numbers diminished by introduced diseases and conflict with the colonists during this period.
Archaic Greece
Archaic Greece was the period in Greek history lasting from the eighth century BC to the second Persian invasion of Greece in 480 BC, following the Greek Dark Ages and succeeded by the Classical period. The period began with a massive increase in the Greek population and a series of significant changes which rendered the Greek world at the end of the eighth century as entirely unrecognisable as compared to its beginning. According to Anthony Snodgrass, the Archaic period in ancient Greece was bounded by two revolutions in the Greek world. It began with a ``structural revolution ''which`` drew the political map of the Greek world'' and established the poleis, the distinctively Greek city - states, and ended with the intellectual revolution of the Classical period.
Thurian Age
The Thurian Age is a specific epoch in the fictional timeline used by Robert E. Howard in his Kull stories. It predates the Hyborian Age of the Conan the Barbarian stories and is known to them as the "Pre-Cataclysmic Age". The main continent is called Thuria, although smaller continents such as Atlantis and an unnamed eastern continent exist, as do several island chains. Most of the world is unexplored wilderness inhabited by "scattered clans and tribes of primitive savages." The boundary between the two ages is marked by the "Great Cataclysm," which might have taken place as early as ca. 35,000 to 40,000 B.C, or as recently as 18,000 B.C. depending on the sources considered. When Robert E. Howard began to chronicle the adventures of Conan the Cimmerian, in the early 1930s, he prepared a fictional history of the Hyborian Age which he had created. That "history" dealt not only with the period during and after Conan's life, but also with events some eight thousand years earlier, during the Thurian civilization which produced King Kull, an exiled warrior from Atlantis, in the days before his continent sank into the surging seas.
Gornergrat
The Gornergrat (; ) is a rocky ridge of the Pennine Alps, overlooking the Gorner Glacier south-east of Zermatt in Switzerland. It can be reached from Zermatt by the Gornergrat rack railway (GGB), the highest open-air railway in Europe. Between the Gornergrat railway station () and the summit is the Kulm Hotel () hosting the new Project "Stellarium Gornergrat" and until 2010 the "Kölner Observatorium für SubMillimeter Astronomie" KOSMA and before that (until 2005) the Gornergrat Infrared Telescope.
Autonomic nervous system
The autonomic nervous system is divided into the sympathetic nervous system and parasympathetic nervous system. The sympathetic division emerges from the spinal cord in the thoracic and lumbar areas, terminating around L2 - 3. The parasympathetic division has craniosacral ``outflow '', meaning that the neurons begin at the cranial nerves (specifically the oculomotor nerve, facial nerve, glossopharyngeal nerve and vagus nerve) and sacral (S2 - S4) spinal cord.
Lateral cutaneous nerve of thigh
Lateral cutaneous nerve of thigh Plan of lumbar plexus. (Lateral femoral cutaneous visible at left.) Cutaneous nerves of the right lower extremity. Front and posterior views. Details From lumbar plexus (L2 -- L3) Innervates Skin on the lateral part of the thigh Identifiers Latin nervus cutaneus femoris lateralis TA A14. 2.07. 011 FMA 16485 Anatomical terms of neuroanatomy (edit on Wikidata)
History of science
Political science is a late arrival in terms of social sciences[citation needed]. However, the discipline has a clear set of antecedents such as moral philosophy, political philosophy, political economy, history, and other fields concerned with normative determinations of what ought to be and with deducing the characteristics and functions of the ideal form of government. The roots of politics are in prehistory. In each historic period and in almost every geographic area, we can find someone studying politics and increasing political understanding.
Geological history of Earth
The Ordovician Period started at a major extinction event called the Cambrian-Ordovician extinction events some time about 485.4 ± 1.9 Ma. During the Ordovician the southern continents were collected into a single continent called Gondwana. Gondwana started the period in the equatorial latitudes and, as the period progressed, drifted toward the South Pole. Early in the Ordovician the continents Laurentia, Siberia and Baltica were still independent continents (since the break-up of the supercontinent Pannotia earlier), but Baltica began to move toward Laurentia later in the period, causing the Iapetus Ocean to shrink between them. Also, Avalonia broke free from Gondwana and began to head north toward Laurentia. The Rheic Ocean was formed as a result of this. By the end of the period, Gondwana had neared or approached the pole and was largely glaciated.
In what area did the period of history, in which anatomical studies of nerves greatly increased, begin on the continent which contains the Gornergrat ridge?
What is the continent of Gornergrat?
Europe
What period in history was anatomical studies of nerves greatly increased?
the Renaissance
the #2 began in which area of #1
seemingly in Italy