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Embryological
Embryology (from Greek ἔμβρυον, ''embryon'', "the unborn, embryo"; and -λογία, ''-logia'') is the branch of animal biology that studies the prenatal development of gametes (sex cells), fertilization, and development of embryos and fetuses. Additionally, embryology encompasses the study of congenital disorders that occur before birth, known as teratology. Early embryology was proposed by Marcello Malpighi, and known as preformationism, the theory that organisms develop from pre-existing miniature versions of themselves. Aristotle proposed the theory that is now accepted, epigenesis. Epigenesis is the idea that organisms develop from seed or egg in a sequence of steps. Modern embryology, developed from the work of Karl Ernst von Baer, though accurate observations had been made in Italy by anatomists such as Aldrovandi and Leonardo da Vinci in the Renaissance. Comparative embryology Preformationism and epigenesis As recently as the 18th century, the prevailing ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Preformation
In the history of biology, preformationism (or preformism) is a formerly popular theory that organisms develop from miniature versions of themselves. Instead of assembly from parts, preformationists believed that the form of living things exist, in real terms, prior to their development.Maienschein, Jane,Epigenesis and Preformationism, The Stanford Encyclopedia of Philosophy (Fall 2008 Edition), Edward N. Zalta (ed.). It suggests that all organisms were created at the same time, and that succeeding generations grow from homunculi, or animalcules, that have existed since the beginning of creation, which is typically defined by religious beliefs. EpigenesisAccording to the Oxford English Dictionary: It is also worth quoting this adumbration of the definition given there (viz., "The formation of an organic germ as a new product"): (or neoformism), then, in this context, is the denial of preformationism: the idea that, in some sense, the form of living things comes into existence ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Preformation
In the history of biology, preformationism (or preformism) is a formerly popular theory that organisms develop from miniature versions of themselves. Instead of assembly from parts, preformationists believed that the form of living things exist, in real terms, prior to their development.Maienschein, Jane,Epigenesis and Preformationism, The Stanford Encyclopedia of Philosophy (Fall 2008 Edition), Edward N. Zalta (ed.). It suggests that all organisms were created at the same time, and that succeeding generations grow from homunculi, or animalcules, that have existed since the beginning of creation, which is typically defined by religious beliefs. EpigenesisAccording to the Oxford English Dictionary: It is also worth quoting this adumbration of the definition given there (viz., "The formation of an organic germ as a new product"): (or neoformism), then, in this context, is the denial of preformationism: the idea that, in some sense, the form of living things comes into existence ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Preformationism
In the history of biology, preformationism (or preformism) is a formerly popular theory that organisms develop from miniature versions of themselves. Instead of assembly from parts, preformationists believed that the form of living things exist, in real terms, prior to their development.Maienschein, Jane,Epigenesis and Preformationism, The Stanford Encyclopedia of Philosophy (Fall 2008 Edition), Edward N. Zalta (ed.). It suggests that all organisms were created at the same time, and that succeeding generations grow from homunculi, or animalcules, that have existed since the beginning of creation, which is typically defined by religious beliefs. EpigenesisAccording to the Oxford English Dictionary: It is also worth quoting this adumbration of the definition given there (viz., "The formation of an organic germ as a new product"): (or neoformism), then, in this context, is the denial of preformationism: the idea that, in some sense, the form of living things comes into existence ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aristotle
Aristotle (; grc-gre, Ἀριστοτέλης ''Aristotélēs'', ; 384–322 BC) was a Greek philosopher and polymath during the Classical period in Ancient Greece. Taught by Plato, he was the founder of the Peripatetic school of philosophy within the Lyceum and the wider Aristotelian tradition. His writings cover many subjects including physics, biology, zoology, metaphysics, logic, ethics, aesthetics, poetry, theatre, music, rhetoric, psychology, linguistics, economics, politics, meteorology, geology, and government. Aristotle provided a complex synthesis of the various philosophies existing prior to him. It was above all from his teachings that the West inherited its intellectual lexicon, as well as problems and methods of inquiry. As a result, his philosophy has exerted a unique influence on almost every form of knowledge in the West and it continues to be a subject of contemporary philosophical discussion. Little is known about his life. Aristotle was born in th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Blastulation
Blastulation is the stage in early animal embryonic development that produces the blastula. In mammalian development the blastula develops into the blastocyst with a differentiated inner cell mass and an outer trophectoderm. The blastula (from Greek '' βλαστός'' ( meaning ''sprout'')) is a hollow sphere of cells known as blastomeres surrounding an inner fluid-filled cavity called the blastocoel. Embryonic development begins with a sperm fertilizing an egg cell to become a zygote, which undergoes many cleavages to develop into a ball of cells called a morula. Only when the blastocoel is formed does the early embryo become a blastula. The blastula precedes the formation of the gastrula in which the germ layers of the embryo form. A common feature of a vertebrate blastula is that it consists of a layer of blastomeres, known as the blastoderm, which surrounds the blastocoel. In mammals, the blastocyst contains an embryoblast (or inner cell mass) that will eventually ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aldrovandi
Aldrovandi is a family name of the Emilia-Romagna in Italy, and especially famous for the aristocratic and Senatorial family from Bologna. The Palazzo Aldrovandi in central Bologna was built by the family. Among its famous members are: *Cardinal Pompeo Aldrovandi (1668–1752), Italian Cardinal of the Roman Catholic Church *Ulisse Aldrovandi (1522–1605), an Italian botanist and naturalist, after which the genus ''Aldrovanda'' is named *Luigi Aldrovandi Marescotti Luigi Aldrovandi Marescotti, Count of Viano, LLD, (5 October 1876 – 9 July 1945) was an Italian politician and diplomat. He was educated at the University of Bologna. Biography He graduated in Law in 1897 from the University of Bologna and ..., Count of Viano (1876–1945) Italian politician and diplomat Other * Aldrovandi Villa Borghese- a hotel in Rome {{surname ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Spallanzani
Lazzaro Spallanzani (; 12 January 1729 – 11 February 1799) was an Italian Catholic priest (for which he was nicknamed Abbé Spallanzani), biologist and physiologist who made important contributions to the experimental study of bodily functions, animal reproduction, and animal echolocation. His research on biogenesis paved the way for the downfall of the theory of spontaneous generation, a prevailing idea at the time that organisms develop from inanimate matters, though the final death blow to the idea was dealt by French scientist Louis Pasteur a century later. His most important works were summed up in his book ''Experiencias Para Servir a La Historia de La Generación De Animales y Plantas'' (''Experiences to Serve to the History of the Generation of Animals and Plants''), published in 1786. Among his contributions were experimental demonstrations of fertilisation between ova and spermatozoa, and ''in vitro'' fertilisation''.'' Biography Spallanzani was born in Scandia ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stefano Lorenzini
Stefano is the Italian form of the masculine given name Στέφανος (Stefanos, Stephen). The name is of Greek origin, Στέφανος, meaning a person who made a significant achievement and has been crowned. In Orthodox Christianity the achievement is in the realm of virtues, αρετές, therefore the name signifies a person who had triumphed over passions and gained the relevant virtues. In Italian, the stress falls usually on the first syllable, (an exception is the Apulian surname ''Stefano'', ); in English it is often mistakenly placed on the second, . People with the given name Stefano * Stefano (wrestler), ring name of Daniel Garcia Soto, professional wrestler * Stefano Borgia (1731–1804), Italian Cardinal, theologian, antiquarian, and historian * Stefano Bertacco (1962–2020), Italian politician * Stefano Cagol (born 1969), Italian artist * Stefano Casiraghi (1960–1990), Italian socialite * Stefano Cavazzoni (1881–1951), Italian politician * Stefano Era ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fortunio Liceti
Fortunio Liceti (Latin: ''Fortunius Licetus''; October 3, 1577 – May 17, 1657), was an Italian physician and philosopher. Life and career He was born prematurely at Rapallo, near Genoa to Giuseppe Liceti and Maria Fini, while the family was moving from Recco. His father was a doctor and created a makeshift incubator, thereby saving Fortunio. Fortunio studied with his father from 1595 until 1599, when he moved on to the University of Bologna, where he studied philosophy and medicine. There his teachers included Giovanni Costeo and Federico Pendasio, two men whom Liceti respected so much he later named his first son in their honor (Giovanni Federico Liceti). In October 1599, Giuseppe Liceti fell fatally ill and Fortunio returned to Genoa, where Giuseppe was now practicing medicine. On March 23, 1600, Liceti received his doctorate in philosophy and medicine. On November 5 of that year, Liceti took a position as lecturer of logic at the University of Pisa and in 1605, he was awar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Emilio Parisano
{{disambiguation ...
Emilio may refer to: * Emilio Navaira, a Mexican-American singer often called "Emilio" * Emilio Piazza Memorial School, in Port Harcourt, Rivers State * Emilio (given name) * ''Emilio'' (film), a 2008 film by Kim Jorgensen See also * Emílio (other) * Emilios (other) Emilios, or Aimilios, (Greek: Αιμίλιος) is a variant of the given names Emil, Emilio and Emílio, and may refer to: *Aimilios Veakis, Greek actor * Aimilios Papathanasiou, Greek sailor *Emilios T. Harlaftis, Greek astrophysicist * Emilios ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Girolamo Cardano
Gerolamo Cardano (; also Girolamo or Geronimo; french: link=no, Jérôme Cardan; la, Hieronymus Cardanus; 24 September 1501– 21 September 1576) was an Italian polymath, whose interests and proficiencies ranged through those of mathematician, physician, biologist, physicist, chemist, astrologer, astronomer, philosopher, writer, and gambler. He was one of the most influential mathematicians of the Renaissance, and was one of the key figures in the foundation of probability and the earliest introducer of the binomial coefficients and the binomial theorem in the Western world. He wrote more than 200 works on science. Cardano partially invented and described several mechanical devices including the combination lock, the gimbal consisting of three concentric rings allowing a supported compass or gyroscope to rotate freely, and the Cardan shaft with universal joints, which allows the transmission of rotary motion at various angles and is used in vehicles to this day. He made signif ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gabriele Falloppio
Gabriele Falloppio (also Gabrielle Falloppia) (1522/23 – 9 October 1562) was an Italian anatomist often known by his Latin name Fallopius. He was one of the most important human anatomy, anatomists and physicians of the sixteenth century, giving his name to the Fallopian tube. Life Falloppio grew up in Modena. His father died early but thanks to the support of affluent relatives he enjoyed are thorough humanist education in Modena, learning Latin and Greek and moving in the local circle of humanist scholars. He was for some years in the service of the Church, among others as a kind of warden at Modena's cathedral, but soon turned to medicine. In 1544, he performed a public anatomy in Modena. In 1545, at the latest, he began to study medicine at the University of Ferrara, at that time one of the best medical schools in Europe. It was there also that he much later, in 1552, when he was already professor in Padua, received his medical doctorate under the guidance of Antonio Musa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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