The Alexandria School of Medicine is one of the oldest empirical educational institutions in the history of medicine initiated during the Hellenistic period in the city of Alexandria (311 BC). At one historical juncture, in Egypt, they united all the different medical doctrines that originated in the East and in Alexandria (increasingly resembling a cosmopolitan city), and merged into one universal "critical mass of knowledge" the Alexandrian empirical school. [1] As the Alexandria School grows more developed Medical Schools in Knossos and in Knidos over time lost their meaning and significance.
The Greek city of Alexandria, at the mouth of the Nile, was planned and founded by Alexander the Great in 331 BC, and concentrated in it cultural streams from various places: the mysticism of the East and Greek rationalism, in a rich library, with about 700,000 written rolls (the treasure trove of all human knowledge to date; the richest in the world). Thus, with its schools, Alexandria was a kind of university where the most prominent writers, physicians, scientists, and philosophers of the historical period gathered and worked. [1]
The ancient Greeks appreciated Egypt and saw in it a mysterious land, fertile with hidden wisdom. At one point, they united all the different medical doctrines originating in the East and in Alexandria (which increasingly resembled a cosmopolitan city) in Egypt, and merged it into one universal critical mass of knowledge.[ citation needed ] In Alexandria, special importance was given to the study of medicine. The medical works of Hippocrates and Aristotle were studied and the first "Hippocratic Corpus" was collected. Anatomy and methodical study of human corpses are introduced for the first time.[ citation needed ]
As the medical science of ancient Greece plunged into political decadence and setbacks - scientific work was renewed in this area, especially in the field of anatomy: numerous sections on corpses and even vivisection on death row inmates were done. [2] From such work the first meaningful written texts about human anatomy were written, as these were the first instances of human dissection in Greek medical practice. Prior to this period, human dissection was taboo. [3]
Anatomists and doctors of the Alexandria School were Herophilos and Erasistratus.[ citation needed ]
Although Herophilos (c. 300 BC) is considered to be the founder of true anatomy, it is also a versatile advocate for the use of medicines. He studied all the organs in the body anatomically, and considered the brain a nerve center and soul-carrier. [4]
Herophilos was not only an anatomist but also one of the physicians of that school. He also describes numerous brain structures, which he calls the brain sheaths, choroid plexus and four brain chambers.[ citation needed ]
Erasistratus (304-250 BC), a Greek physician who grew up in Antioch, was an anatomist of that time, who described the numerous anatomical structures of the human body. He was a young contemporary of Herophilos and, with him, the principal representative of the Alexandrian Medical School.
He systematically dissected the corpses, the death row convicts, and probably the bodies of living animals, and thus scientifically advanced the anatomy. He described the heart and its valves, blood vessels and nerves, the brain and its chambers and eddies, brain nerve outputs, lymphatic vessels in the mesentery and liver.[ citation needed ]
However, Erasistratus's greatest merits are in the field of Physiology. He was the first to correctly describe the physiological functions of ventricular heart valves. Under the influence of the Democritus of atomistics and the peripatetic school, he sought to interpret all life phenomena in a strictly mechanical manner. In his view, three organ systems pass through and are connected by the whole organism: arteries, veins and nerves; the first water pneuma, the second blood, and the third the nerve fluid. The melting of the pneuma down it was reduced to the mechanical work of the heart. [5]
He also tried to explain to the mechanical principles breathing and digestion. The former realized the difference between motor and sensory nerves, and he "threw out" Hippocrates learning, and advocated the use of weak drugs.[ citation needed ] Erasistratus rejected the humoral and pathology of the "four juices", starting from the view that the diseases were the result of accumulation of blood (plethora) or its deficiency in some part of the body, which resulted in humoral dyscrasia. According to him, the plethora is a vein full of blood, which flows into the arteries and mechanically expels the pneuma there.[ citation needed ]
As most of the diseases, Erasistratus considered to be due to over-nutrition, he suggested that not much release be used against the plethora blood as a post. [6]
The Alexandria School leads to the development of surgery and pharmacology. Medicines are prepared there, but at the same time poisons are investigated and antidotes are prepared.[ citation needed ]
The flourishing of anatomy in the Alexandrian school led to scientific results that were not always in line with the dogmatic school hypotheses. In response to sterile dogmatism, it originated in the 3 BC in Alexandria the so-called. an empirical school that abandoned assumptions, philosophy and theory, adhering only to experience (empirics) as the only means of acquiring new, positive knowledge.[ citation needed ]
An empiricist school is being developed in Alexandria in parallel. Although the empiricist mode of learning will only gain significance in 17th century when physicians are increasingly seeking success in their work, rather than theoretical knowledge, we find the traces of this teaching in the works of the doctors of the Alexandria School. Its chief representative was the physician Glaucko Tarencio (1 BC), who could be said to have been the forerunner of evidence-based medicine.
For him, only results were the reliable basis; acquired through personal experience, or the experience of other physicians, or similar analogy when he did not have prior data to compare from his or her own or others' experience.
Of the other greats of this school, one should also mention Oribasius a (6th century), who wrote collected works on medicine in 70 books and Paul of Aegina (7th century, the most prominent representative of the Byzantine. [7] [8] [9] [10] [11] [12] [13]
The empirical school had its downsides. The abandonment of the theory caused a decline in the scientific level of medicine, which increasingly began to focus solely on practical problems. The link between physiology and pathology disappeared, and in the end, only the external signs of the disease, the symptoms, were important to the physician at that time. [14]
The beginnings of Medical astrology are found in the works of physicians and philosophers from the Greco-Alexandrian period. Philosophers, but above all physicians at the Alexandria Medical School, resorted to astrology and valued it as a skill that significantly helps man.
With all the differences between astrology and medicine, which are actually skills - artes (and medicine is actually until the 19th century, although such determination is still heated today), ^ there are significant connections. Both disciplines are based on observation and experience and involve both theoretical and practical aspects. If we take into account the fact that astrology is first and foremost a branch of divination, then it is clear that at least one part of medicine, i.e. prognostics, can be related to astrology. However, if we look back at the history of medicine and start from Greek medicine, we will see that according to many sources, astrology throughout the history of medicine is already a significant part of it Hippocrates (which respected many astrological rules). [15]
The role of astrology in medicine is indicated by a large group of texts in the so-called. popular Hermeticism, a scripture attributed to the legendary Egyptians Neheps and Petoziris and Hermes Trismegistos (who was considered the patron saint of astrology and alchemy), dated as early as 3 BC, in which the connection between astrology and medicine was discovered. In their works they are mainly texts that study the field of botany, mineralogy, but also medicine and medical astrology. In these, certain medicinal plants and minerals, as well as parts of the human body, are associated with zodiac signs, with planets and their positions, etc. In all these astrological-alchemical-magical tracts, the basic assumption is the thesis about the interconnectedness of all parts of the cosmos, the thesis about the operation of the laws of sympathy and antipathy.
Astrology plays an important role in medicine, not only in predicting the course of the disease, but also in their treatment. The connection between astrology and medicine is also emphasized in the works of Claudius Ptolemy (2nd century), especially in those in which astrology, such as the "Quadripartitum and Centiloquium", were works widely used by physicians, which also existed under the name Kαρπος , and which were attributed to and reproduced throughout the Middle Ages and the Renaissance (later, however, this attribution proved to be incorrect).
With the transition of Egypt to the status of Roman province and the fall of Alexandria into the hands of Rashidun Caliphate (641 AD), the Alexandrian Medical School slowly lost importance, while the golden age of medicine in Europe was developing.[ citation needed ]
Anatomy is the branch of biology concerned with the study of the structure of organisms and their parts. Anatomy is a branch of natural science that deals with the structural organization of living things. It is an old science, having its beginnings in prehistoric times. Anatomy is inherently tied to developmental biology, embryology, comparative anatomy, evolutionary biology, and phylogeny, as these are the processes by which anatomy is generated, both over immediate and long-term timescales. Anatomy and physiology, which study the structure and function of organisms and their parts respectively, make a natural pair of related disciplines, and are often studied together. Human anatomy is one of the essential basic sciences that are applied in medicine, and is often studied alongside physiology.
Aelius Galenus or Claudius Galenus, often anglicized as Galen or Galen of Pergamon, was a Roman and Greek physician, surgeon, and philosopher. Considered to be one of the most accomplished of all medical researchers of antiquity, Galen influenced the development of various scientific disciplines, including anatomy, physiology, pathology, pharmacology, and neurology, as well as philosophy and logic.
Hippocrates of Kos, also known as Hippocrates II, was a Greek physician of the classical period who is considered one of the most outstanding figures in the history of medicine. He is traditionally referred to as the "Father of Medicine" in recognition of his lasting contributions to the field, such as the use of prognosis and clinical observation, the systematic categorization of diseases, or the formulation of humoral theory. The Hippocratic school of medicine revolutionized ancient Greek medicine, establishing it as a discipline distinct from other fields with which it had traditionally been associated, thus establishing medicine as a profession.
The history of anatomy extends from the earliest examinations of sacrificial victims to the sophisticated analyses of the body performed by modern anatomists and scientists. Written descriptions of human organs and parts can be traced back thousands of years to ancient Egyptian papyri, where attention to the body was necessitated by their highly elaborate burial practices.
This is a timeline of the history of medicine and medical technology.
Herophilos, sometimes Latinised Herophilus, was a Greek physician regarded as one of the earliest anatomists. Born in Chalcedon, he spent the majority of his life in Alexandria. He was the first scientist to systematically perform scientific dissections of human cadavers. He recorded his findings in over nine works, which are now all lost. The early Christian author Tertullian states that Herophilos vivisected at least 600 live prisoners; however, this account has been disputed by many historians. He is often seen as the father of anatomy.
Erasistratus was a Greek anatomist and royal physician under Seleucus I Nicator of Syria. Along with fellow physician Herophilus, he founded a school of anatomy in Alexandria, where they carried out anatomical research. As well, he is credited with helping to found the methodic school of teachings of medicine in Alexandria whilst opposing traditional humoral theories of Hippocratic ideologies. Together with Herophilus, he is credited by historians as the potential founder of neuroscience due to his acknowledgements of nerves and their roles in motor control through the brain and skeletal muscles.
The pulmonary circulation is a division of the circulatory system in all vertebrates. The circuit begins with deoxygenated blood returned from the body to the right atrium of the heart where it is pumped out from the right ventricle to the lungs. In the lungs the blood is oxygenated and returned to the left atrium to complete the circuit.
Science in classical antiquity encompasses inquiries into the workings of the world or universe aimed at both practical goals as well as more abstract investigations belonging to natural philosophy. Classical antiquity is traditionally defined as the period between the 8th century BC and the 6th century AD. It is typically limited geographically to the Greco-Roman West, Mediterranean basin, and Ancient Near East, thus excluding traditions of science in the ancient world in regions such as China and the Indian subcontinent.
Manṣūr ibn Muḥammad ibn Aḥmad ibn Yūsuf Ibn Ilyās was a late 14th-century and early 15th-century Persian physician from Shiraz, Timurid Persia, commonly known for his publication of the colored atlas of the human body, Mansur’s Anatomy. It is important to know that al-Jurjani (1040–1136) published a book called "Zakhireye Khwarazmshahi" which Mansur could have copied the illustrations from his book.
Alcmaeon of Croton was an early Greek medical writer and philosopher-scientist. He has been described as one of the most eminent natural philosophers and medical theorists of antiquity and he has also been referred to as "a thinker of considerable originality and one of the greatest philosophers, naturalists, and neuroscientists of all time." His work in biology has been described as remarkable, and his originality made him likely a pioneer. Because of difficulties dating Alcmaeon's birth, his importance has been neglected.
Praxagoras was a figure of medicine in ancient Greece. He was born on the Greek island of Kos in about 340 BC. Both his father, Nicarchus, and his grandfather were physicians. Very little is known of Praxagoras' personal life, and none of his writings have survived.
Ancient Greek medicine was a compilation of theories and practices that were constantly expanding through new ideologies and trials. The Greek term for medicine was iatrikē. Many components were considered in ancient Greek medicine, intertwining the spiritual with the physical. Specifically, the ancient Greeks believed health was affected by the humors, geographic location, social class, diet, trauma, beliefs, and mindset. Early on the ancient Greeks believed that illnesses were "divine punishments" and that healing was a "gift from the Gods". As trials continued wherein theories were tested against symptoms and results, the pure spiritual beliefs regarding "punishments" and "gifts" were replaced with a foundation based in the physical, i.e., cause and effect.
Medicine in ancient Rome was highly influenced by ancient Greek medicine, but also developed new practices through knowledge of the Hippocratic Corpus combined with use of the treatment of diet, regimen, along with surgical procedures. This was most notably seen through the works of two of the prominent Greek physicians, Dioscorides and Galen, who practiced medicine and recorded their discoveries. This is contrary to two other physicians like Soranus of Ephesus and Asclepiades of Bithynia, who practiced medicine both in outside territories and in ancient Roman territory, subsequently. Dioscorides was a Roman army physician, Soranus was a representative for the Methodic school of medicine, Galen performed public demonstrations, and Asclepiades was a leading Roman physician. These four physicians all had knowledge of medicine, ailments, and treatments that were healing, long lasting and influential to human history.
Surgery is the branch of medicine that deals with the physical manipulation of a bodily structure to diagnose, prevent, or cure an ailment. Ambroise Paré, a 16th-century French surgeon, stated that to perform surgery is, "To eliminate that which is superfluous, restore that which has been dislocated, separate that which has been united, join that which has been divided and repair the defects of nature."
A cadaver or corpse is a dead human body. Cadavers are used by medical students, physicians and other scientists to study anatomy, identify disease sites, determine causes of death, and provide tissue to repair a defect in a living human being. Students in medical school study and dissect cadavers as a part of their education. Others who study cadavers include archaeologists and arts students. In addition, a cadaver may be used in the development and evaluation of surgical instruments.
The history of pathology can be traced to the earliest application of the scientific method to the field of medicine, a development which occurred in the Middle East during the Islamic Golden Age and in Western Europe during the Italian Renaissance.
The Ancient Egyptian anatomical studies is an article about the history of anatomy within ancient Egypt.
The search for a hypothetical soul and its location have been a subject of much speculation throughout history. In early medicine and anatomy, the location of the soul was hypothesized to be located within the body. Aristotle and Plato understood the soul as a corporeal form but closely related to the physical world. The Hippocratic Corpus chronicles the evolution of thought that the soul is located within the body and is manifested in diseased conditions. Later, Galen explicitly used Plato's description of the corporeal soul to physical locations in the body. The logical (λογιστικός) in the brain, the spirited (θυμοειδές) in the heart, and the appetitive (ἐπιθυμητικόν) in the liver. Da Vinci had a similar approach to Galen, locating the soul, or senso comune, as well as the imprensiva (intellect) and memoria (memory) in different ventricles of the brain. Today neuroscientists and other fields of science that deal with the body and the mind, such as psychology, bridge the gap between what is physical and what is corporeal.