from JEAN PECQUET (1622-1674). Experimenta nova anatomica, quibus incognitum hactenus chyli receptaculum, & ab eo per thoracem in ramos usque subclavios vasa lactea deteguntur. Paris: Apud Sebastianum Cramoisy et Gabrielem Cramoisy, 1651.
At the beginning of the 17th century, it was widely believed that food was converted into blood as it passed through the digestive system. The blood was then carried to the liver where it was imbued with natural spirits and passed on to the heart for distribution through the body. Since only the blood vessels were known to the anatomists of that day, it was thought that chyle, the product of digestion, was transported to the liver by the venous system of the intestines.
This notion was corrected by Gaspare Aselli in 1627 when, by accident, he discovered the lacteal vessels in the mesentery of a dog. He incorrectly surmised that the lacteal vessels empty their contents into the liver. It was not until 1651 that Pecquet reported his discovery of the receptaculum chyli and thoracic duct. He accurately described the lacteal veins of Aselli and showed that they terminate in the receptaculum chyli and that the thoracic duct joins the venous systems at the junction of the jugular and subclavian veins.
Joannes van Horne made the same discovery quite independently and corroborated Pecquet’s findings. Later Pecquet’s work was confirmed and extended to cover the entire lymphatic system by Olof Rudbeck (1630-1702) and Thomas Bartholin. The copperplate engraving clearly depicts the main lymphatic system both in a separate figure and in the dissected abdomen and thorax of a dog.
Nutrition is a trending subject that’s important in many areas of the health sciences. Nutrition is one of the most difficult subjects to search in PubMed, because relevant aspects of the subject are scattered among multiple subject terms.
We’re offering a class to help you optimize your searches for nutrition, diet and food in PubMed. The class is appropriate for all health sciences specialties. It will be taught by Janna Lawrence and Eric Rumsey, both of whom are experienced in searching nutrition and other subjects in PubMed.
Janna Lawrence, Deputy Director of Hardin Library for the Health Sciences, was awarded the 2014 Virginia L. and William K. Beatty Medical Library Association (MLA) Volunteer Service award on May 20 at the MLA Annual Conference in Chicago.
The award was established in 2007 to recognizes a medical librarian who has demonstrated outstanding, sustained service to the Medical Library Association and the health sciences library profession.
The nominee must be an “unsung hero” of MLA and have not served in an elected national leadership position or received a national MLA award prior to or at the time of the nomination. The award is named in honor of Virginia L. and William K. Beatty and recognizes their significant contributions to MLA and the profession as longtime volunteers to the association.
Daylight savings time begins this Sunday at 2:00 am. Set your clocks ahead one hour before bed on Saturday. The National Institute of Standards and Technology has more information about daylight savings time.
Test how much you know about recycling and get a chance to win a prize! Take the Knowledge is Power quiz. RecycleMania is a national competition, pitting over 500 campuses against each other in an effort to recycle the most and reduce the least.
Learn how to use tools such as Ulrich’s, Journal Citation Reports, Web of Sciences, and Scopus to determine the impact that journals, articles, and authors have had on a particular field. Impact factors, Eigenfactors, and H-indices can also be covered.
Learn about the basic features of common citation management tools and discover which one is most appropriate for your needs. Compare 4 tools: RefWorks, Endnote, Mendeley, and Zotero and figure out which one will work best for you.