What are the 3 main components of blood?

What are the components of blood?

• Red blood cells (erythrocytes). These carry oxygen from the lungs to the rest of the body.
• White blood cells (leukocytes). These help fight infections and aid in the immune process. Types of white blood cells include: Lymphocytes.
• Platelets (thrombocytes). These help in blood clotting.

What is blood cell?

A blood cell, also called a hematopoietic cell, hemocyte, or hematocyte, is a cell produced through hematopoiesis and found mainly in the blood. Major types of blood cells include red blood cells (erythrocytes), white blood cells (leukocytes), and platelets (thrombocytes).

What are the components of WBC?

WBC’s are composed of granulocytes (neutrophils, eosinophils, and basophils) and non-granulocytes (lymphocytes and monocytes). White blood cells are a major component of the body’s immune system. Indications for a WBC count include infectious and inflammatory diseases; leukemia and lymphoma; and bone marrow disorders.

Is bone marrow an organ?

In immunology and anatomy textbooks the bone marrow is described as a typical “primary lymphoid organ” producing lymphoid cells independent of antigens. The hematopoietic bone marrow is largely age-dependent organ with great anatomical and functional differences among various species.

How are blood cells made?

The process of making blood cells is called hematopoiesis . Blood cells are made in the bone marrow . These blood-forming stem cells can grow into all 3 types of blood cells – red cells, white cells and platelets. These blood-forming stem cells make copies of themselves, and they also produce mature blood cells.

What is the composition of RBC?

Vertebrate red blood cells consist mainly of hemoglobin, a complex metalloprotein containing heme groups whose iron atoms temporarily bind to oxygen molecules (O2) in the lungs or gills and release them throughout the body. Oxygen can easily diffuse through the red blood cell’s cell membrane.