Portrait of Martin William Flack Wellcome L0011820

Martin William Flack (20 March 1882 – 16 August 1931) was a British physiologist who co-discovered the

sinoatrial node The sinoatrial node (also known as the sinuatrial node, SA node, sinus node or Keith–Flack node) is an ellipse, oval shaped region of special cardiac muscle in the upper back wall of the right atrium made up of Cell (biology), cells known as pa ...

with Sir

Arthur Keith Sir Arthur Keith FRS FRAI (5 February 1866 – 7 January 1955) was a British anatomist and anthropologist, and a proponent of scientific racism. He was a fellow and later the Hunterian Professor and conservator of the Hunterian Museum of the ...

in 1907. Flack later became demonstrator of physiology at the

London Hospital The Royal London Hospital is a large teaching hospital in Whitechapel in the London Borough of Tower Hamlets. It is part of Barts Health NHS Trust. It provides district general hospital services for the City of London and London Borough of Tow ...

and later a lecturer. He served on the Medical Research Council and became the director of medical research for the

Royal Air Force The Royal Air Force (RAF) is the Air force, air and space force of the United Kingdom, British Overseas Territories and Crown Dependencies. It was formed towards the end of the World War I, First World War on 1 April 1918, on the merger of t ...

. He was appointed a Commander of the

Order of the British Empire The Most Excellent Order of the British Empire is a British order of chivalry, rewarding valuable service in a wide range of useful activities. It comprises five classes of awards across both civil and military divisions, the most senior two o ...

in the 1919 New Year Honours.

Selected publications

''A Textbook of Physiology''
(1919)

References

{{DEFAULTSORT:Flack, Martin 1882 births 1931 deaths British physiologists Commanders of the Order of the British Empire