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Related Concept Videos

Characteristics and Functions of Blood01:26

Characteristics and Functions of Blood

Blood is specialized connective tissue comprising about 8% of the body mass. It has a thick, liquid extracellular matrix that contains cells, dissolved proteins, and electrolytes, making it five times more viscous than water. Blood is warm, around 38°C, and has an alkaline pH ranging from 7.35 to 7.45.
The primary function of blood is to transport oxygen and carbon dioxide between tissues and the lungs. Oxygenated blood is bright red, while oxygen-depleted blood is darker. It also carries...
Disorders of Hemostasis01:24

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Hemostasis, the process that stops bleeding after a blood vessel injury, is crucial for maintaining the integrity of the circulatory system. However, disorders of hemostasis can disrupt this delicate balance, leading to either excessive clotting or bleeding. These disorders can be broadly classified into thromboembolic disorders and bleeding disorders.
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Blood Transfusion and Agglutination02:45

Blood Transfusion and Agglutination

Blood transfusion is a therapeutic measure to restore the blood volume after extensive blood loss due to an accident or a medical procedure. Blood transfusion involves drawing a certain amount of blood from a suitable donor and infusing it into the recipient.
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The history of blood transfusion dates back to the 17th century, when early attempts were made in animals. In 1818 James Blundell, a British doctor, performed the first successful human blood transfusion. Later in 1900, Karl...
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Blood transfusion is a critical medical procedure that saves lives and treats various medical conditions. It involves transferring blood from a donor to a recipient. This process requires a thorough understanding of the ABO blood group system and its associated antigens and antibodies.
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Fluid Connective Tissues: Blood and Lymph01:20

Fluid Connective Tissues: Blood and Lymph

Blood and lymph are fluid connective tissues. They contain cells, also known as formed elements, circulating in a liquid extracellular matrix, the plasma. The formed elements are derived from hematopoietic stem cells in the bone marrow. Blood and lymph connect all vital parts and carry nutrients, oxygen, and other essential molecules like antibodies.
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Integrated Compensatory Responses in a Human Model of Hemorrhage
07:57

Integrated Compensatory Responses in a Human Model of Hemorrhage

Published on: November 20, 2016

Blood and war.

John Hedley-Whyte1, Debra R Milamed

  • 1Harvard University, Boston, MA 02132-4927, USA. john_hedley-whyte@hms.harvard.edu

The Ulster Medical Journal
|March 1, 2012
PubMed
Summary
This summary is machine-generated.

Almroth Wright described blood transfusion in 1894, with widespread clinical use by 1918. Harvard Medical School and American/Canadian clinicians were vital in its wartime application.

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Area of Science:

  • Medical History
  • Hematology
  • Surgical Practice

Background:

  • The early history of blood transfusion practices.
  • The development of blood transfusion during World War I.

Observation:

  • Almroth Wright described blood transfusion in 1894.
  • Widespread clinical and wartime use of transfusion by 1918.

Findings:

  • Harvard Medical School played a crucial role in advancing transfusion techniques.
  • American and Canadian clinicians, alongside British counterparts, were instrumental in its deployment.
  • Key figures included surgeons Robertson and Bruce, physician Roger I. Lee, surgeon George W Crile, Peyton Rous, and Richard Lewisohn.

Implications:

  • Indirect citrated nutrient-enhanced blood transfusion became a standard practice for the Allies.
  • The work laid the foundation for modern blood banking and transfusion medicine.
  • Collaboration between institutions like Harvard Medical School and international clinicians accelerated medical advancements.