Blood groups

Screenshot 2025 02 26 110045 Blood groups

Blood groups: In the year 1900, Austrian scientist Karl Landsteiner discovered the ABO blood group system. In his experiments, he mixed different blood types, observing that the plasma from specific blood types produced agglutinates or formed clusters. This phenomenon was caused by the absence of molecules on red blood cells, which, in turn, led to … Read more

Mechanisms of coagulation

Screenshot 2025 02 26 112603 Mechanisms of coagulation

Mechanisms of coagulation: Blood coagulation, or clotting, is a complex and tightly regulated physiological mechanism that prevents excessive bleeding following a vascular injury. It involves a series of sequential and interrelated reactions that ultimately lead to the formation of a blood clot. The coagulation process can be divided into three main pathways: intrinsic, extrinsic, and … Read more

Hemopoiesis: Definition, Types, Process and Regulation

Screenshot 2025 02 26 150252 Hemopoiesis: Definition, Types, Process and Regulation

Hemopoiesis, also known as hematopoiesis, is the blood cell formation process in the bone marrow. It is a critical physiological process that produces all the different types of blood cells found in the body. Hemopoiesis is essential for maintaining overall health and homeostasis. Here’s a detailed note on hemopoiesis: Types of blood cells produced Hemopoiesis … Read more

Composition and function of blood

Screenshot 2025 02 26 150439 Composition and function of blood

Composition and function of blood: Blood is a vital connective tissue in the human body with many functions. It consists of several components, each crucial in maintaining homeostasis and overall health. Here’s a detailed note on the composition and functions of blood: Composition and function of blood Composition of Blood Blood plasma is the liquid … Read more