Physiology

It seems like body hair doesn’t have an important purpose, so many of you probably ask – why do we grow body hair when we don’t need it? The answer to this question is provided by a team of researchers who found out that our body hair can help us detect parasites and bugs. This […]

Physicists from the New York University have created a unique method which replicates the biological cell-to-cell adhesion. This method can also be applied in different industrial applications.

Blood is an essential part of the body of every human and most animals and insects. This is a liquid which is red in color. Blood is a living tissue which constantly circulates throughout the human body. Blood contains two main components: 1-     Blood Cells 2-     Blood Plasma Blood plasma is nonliving, pale yellow, intercellular […]

Blood Transfusion Blood transfusion is something very common and this simple operation is performed in every hospital. Carl Landsteiner was the first scientist to discover that special antigens can be found on the surface of some antibodies in the plasma and erythrocytes.

Blood Clotting: The process of blood clotting has several stages: 1- Blood platelets are ruptured by the injury. 2- They release thromboplastin. 3- Thromboplastin turns prothrombin in thrombin. 4- Thrombin converts the liquid fibrinogen in solid fibrin fibres which create a web at the wound. 5. The blood cells caught in the web form a […]