Erasistratus

Erasistratus of Ceos
Erasistratus by Ingres
Bornc. 304 BC
Diedc. 250 BC
OccupationPhysician
EraHellenistic Greece

Erasistratus (/ˌɛrəˈsɪstrətəs/; ‹See Tfd›Greek: Ἐρασίστρατος; c. 304 – c. 250 BC) 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.[1] 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.[1]

Furthermore, Erasistratus is seen as one of the first physicians/scientists to conduct recorded dissections and potential vivisections alongside Herophilus.[2][3][4] The two physicians were said by several Roman authors, notably Augustine, Celsus, and Tertullian, to have performed controversial vivisections on criminals to study the anatomy and possible physiology of human organs while they were in Alexandria.[2] Because of their research, Erasistratus and Herophilus were heavily criticized for their utilization of vivisections; specifically, by the author Tertullian who followed Christian values.[5] Erasistratus and Herophilus are thought to be the only physicians to perform systematic dissections on the human body until the Renaissance.[2]

Erasistratus is credited for his description of the valves of the heart, and he also concluded that the heart was not the center of sensations, but that it instead functioned as a pump. He was among the first to distinguish between veins and arteries, believing that the arteries were full of air and that they carried the "animal spirit" (pneuma). He considered atoms to be the essential body element, and he believed they were vitalized by the pneuma that circulated through the nerves. He also thought that the nerves moved a nervous spirit from the brain. He then differentiated between the function of the sensory and motor nerves, and linked them to the brain. He is credited with one of the first in-depth descriptions of the cerebrum and cerebellum. Erasistratus is regarded by some as the founder of physiology.[6][7]

  1. ^ a b Wills, Adrian, and A Wills. “Herophilus, Erasistratus, and the Birth of Neuroscience.” Lancet 354, no. 9191 (November 13, 1999): 1719–20. doi:10.1016/S0140-6736(99)02081-4.
  2. ^ a b c Ferngren, Gary. “Vivisection Ancient and Modern.” History of Medicine 4, no. 3 (July 2017): 211–21. doi:10.17720/2409-5834.v4.3.2017.02b.
  3. ^ von Staden, Heinrich (1992). "The discovery of the body: Human dissection and its cultural contexts in ancient Greece". The Yale Journal of Biology and Medicine. 65 (3): 223–241. PMC 2589595. PMID 1285450.
  4. ^ Brenna, Connor T. A. (2021). "Bygone theatres of events: A history of human anatomy and dissection". The Anatomical Record. 305 (4): 788–802. doi:10.1002/ar.24764. ISSN 1932-8494. PMID 34551186. S2CID 237608991.
  5. ^ Tieleman, Teun. “Head and Heart.” Religion & Theology 21, no. 1/2 (March 2014): 86–106. doi:10.1163/15743012-02101003.
  6. ^ "Erasistratus Of Ceos". Britannica.
  7. ^ "Erasistratus". Encyclopedia.com.