Medical Terminology Daily (MTD) is a blog sponsored by Clinical Anatomy Associates, Inc. as a service to the medical community. We post anatomical, medical or surgical terms, their meaning and usage, as well as biographical notes on anatomists, surgeons, and researchers through the ages. Be warned that some of the images used depict human anatomical specimens.

You are welcome to submit questions and suggestions using our "Contact Us" form. The information on this blog follows the terms on our "Privacy and Security Statement" and cannot be construed as medical guidance or instructions for treatment.

We have 177 guests and no members online

A Moment in History

Georg Eduard Von Rindfleisch

Georg Eduard Von Rindfleisch
(1836 – 1908)

German pathologist and histologist of Bavarian nobility ancestry. Rindfleisch studied medicine in Würzburg, Berlin, and Heidelberg, earning his MD in 1859 with the thesis “De Vasorum Genesi” (on the generation of vessels) under the tutelage of Rudolf Virchow (1821 - 1902). He then continued as a assistant to Virchow in a newly founded institute in Berlin. He then moved to Breslau in 1861 as an assistant to Rudolf Heidenhain (1834–1897), becoming a professor of pathological anatomy. In 1865 he became full professor in Bonn and in 1874 in Würzburg, where a new pathological institute was built according to his design (completed in 1878), where he worked until his retirement in 1906.

He was the first to describe the inflammatory background of multiple sclerosis in 1863, when he noted that demyelinated lesions have in their center small vessels that are surrounded by a leukocyte inflammatory infiltrate.

After extensive investigations, he suspected an infectious origin of tuberculosis - even before Robert Koch's detection of the tuberculosis bacillus in 1892. Rindfleisch 's special achievement is the description of the morphologically conspicuous macrophages in typhoid inflammation. His distinction between myocardial infarction and myocarditis in 1890 is also of lasting importance.

Associated eponyms

"Rindfleisch's folds": Usually a single semilunar fold of the serous surface of the pericardium around the origin of the aorta. Also known as the plica semilunaris aortæ.

"Rindfleisch's cells": Historical (and obsolete) name for eosinophilic leukocytes.

Personal note: G. Rindfleisch’s book “Traité D' Histologie Pathologique” 2nd edition (1873) is now part of my library. This book was translated from German to French by Dr. Frédéric Gross (1844-1927) , Associate Professor of the Medicine Faculty in Nancy, France. The book is dedicated to Dr. Theodore Billroth (1829-1894), an important surgeon whose pioneering work on subtotal gastrectomies paved the way for today’s robotic bariatric surgery. Dr. Miranda.

Sources:
1. "Stedmans Medical Eponyms" Forbis, P.; Bartolucci, SL; 1998 Williams and Wilkins
2. "Rindfleisch, Georg Eduard von (bayerischer Adel?)" Deutsche Biographie
3. "The pathology of multiple sclerosis and its evolution" Lassmann H. (1999)  Philos Trans R Soc Lond B Biol Sci. 354 (1390): 1635–40.
4. “Traité D' Histologie Pathologique” G.E.
Rindfleisch 2nd Ed (1873) Ballieres et Fils. Paris, Translated by F Gross

 "Clinical Anatomy Associates, Inc., and the contributors of "Medical Terminology Daily" wish to thank all individuals who donate their bodies and tissues for the advancement of education and research”.

Click here for more information

abebooks banner

bookplateink.com

 

 

Brachialis

Published: Thursday, November 03, 2022 07:00 | Written by: Efrain A. Miranda, Ph.D. | Hits: 1157

Brachialis muscle - Image modified from the original. Public domain
Brachialis muscle.
Click on the image for a larger depiction

UPDATED: The brachialis muscle is a skeletal muscle attached proximally to the anterior surface of the humerus and distally to the coronoid process and tuberosity of the ulna. It is one of the three muscles in the anterior compartment of the arm (flexor compartment), the other two being the biceps brachii and the coracobrachialis.

It is a strong flexor of the elbow found deep to the biceps brachii. Because it does not attach to the radius, the brachialis muscle does not participate in the pronation and supination of the forearm.

The brachialis is supplied by branches of the brachial artery and by the recurrent radial artery.

The innervation of the brachialis muscle is a point to be discussed. Most modern books of anatomy state that this muscle is innervated by the musculocutaneous nerve (C5, C6, and C7). Older and more detailed books state that this muscle has a dual innervation. A 2011 research paper published in Spanish (see Sources #6) describes this dual innervation. The proximal portion of the muscles is indeed innervated by the musculocutaneous nerve, but the distal portion (in 90% of the cases) is innervated by muscular branches that arise off the radial nerve. The radial nerve (C5, C6, C7, C8 & T1) is a branch of the brachial plexus.

Following is an excerpt from the "Trail Guide to the Body" by Andrew Biel: "Ironically, (because it is deep to the biceps) the brachialis girth only helps the biceps brachii to bulge further from the arm, making the brachialis the biceps' "best friend"

Personal note: The research paper that describes the double innervation of the brachialis muscle was done at my alma mater, the University of Chile, and the authors' listing includes two of the contributors to this blog, Professors Claudio Molina and Cristian Uribe. Dr. Miranda

Sources:
1. “Gray’s Anatomy” Henry Gray, 1918
2. "Tratado de Anatomia Humana" Testut et Latarjet 8th Ed. 1931 Salvat Editores, Spain
3. "Gray's Anatomy" 42nd British Ed. Churchill Livingstone 2021
4. “An Illustrated Atlas of the Skeletal Muscles” Bowden, B. 4th Ed. Morton Publishing. 2015
5. "Trail Guide to The Body" 4th. Ed. Biel, A. Books of Discovery. 2010
6. "Doble Innervacion del Musculo Brachial en la Poblacion Chilena" Claudio Molina; Cristián Uribe; Álvaro Heras; Cristián Astorga;Jorge Lemus & Alberto Rodríguez. Int. J. Morphol, 2011. 29(4):1207-1211. A PDF copy of this paper is available here.

Note: The side image modified from the original by Anatomography, CC BY-SA 2.1 JP <https://creativecommons.org/licenses/by-sa/2.1/jp/deed.en>, via Wikimedia Commons following Creative Commons attributes.