Harvey William


Also found in: Medical.

Har·vey

 (här′vē), William 1578-1657.
English physician who demonstrated (1628) that blood circulates through the human body with the heart acting as a pump.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

Har·vey

(här′vē), William 1578-1657.
English physician and physiologist who was the first to demonstrate the function of the heart and the circulation of blood throughout the human body (1628).
Biography In the second century a.d., the Greek physician Galen theorized that blood is created in the liver, passes once through the heart, and is then absorbed by bodily tissues. Galen's ideas went unchallenged until 1628, when William Harvey published a book describing the circulation of blood throughout the body. Through his observations of human and animal dissections, Harvey saw that blood flows from one side of the heart to the other and that it flows through the lungs and returns to the heart to be pumped elsewhere. There was one missing part of the cycle: How did the blood pumped to distant body tissues get into the veins to be carried back to the heart? As an answer, Harvey offered his own, unproven theory, one that has since been shown to be true: blood passes from small, outlying arteries through tiny vessels called capillaries into the outlying veins. Harvey's views were so controversial at the time that many of his patients left his care, but his work became the basis for all modern research on the heart and blood vessels.
The American Heritage® Student Science Dictionary, Second Edition. Copyright © 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
References in periodicals archive ?
SLEEPING Harvey William Henry was born on August 27, weighing 8lb 15oz.
Victim Harvey Williams was struck with such force that he was thrown to the floor and injured.
The four friends - Owain Fletcher, 16, Harvey Williams, 16, Mikey Fraser, 17, and James Masterson,16 - were all pupils at St Michael's High School in Crosby.
The four friends - Owain Fletcher (16), Harvey Williams (16), Mikey Fraser (17), and James Masterson (16) - all knew each other from the time when they were pupils at St Michael's High School in Crosby.
The entrepreneurs behind the venture are Harvey Williams Jr.
In addition, the number of sales being completed has rocketed according to Harvey Williams, Coventry and Warwickshire regional spokesman for the Royal Institute of Chartered Surveyors.
Friend Harvey Williams said: "It was a very moving tribute and Dame Knight referred to many of his wide variety of interests."
Harvey Williams has been named chief operating officer of Inland Pipe Rehabilitation (IPR), a leading provider of underground rehabilitation solutions with offices throughout the U.S.
Harvey Williams, aged 4 Jane said the consultant had told her that Harvey would have to be induced on March 16.
Certainly last week's mention of former City manager Terry Butcher being burgled when he lived in Hunningham, near Rugby, stirred a bitter-sweet memory for Harvey Williams.
Harvey Williams, RICS West Midlands housing spokesman, said: "A mansion tax wouldn't really have affected us in the West Midlands as it deals with property over PS2 million.
Local regional spokesman for the Royal Institution of Chartered Surveyors, Harvey Williams, says the chancellor should start by extending the stamp duty holiday on properties sold for less than pounds 250,000 in order to keep the market moving.