Blood Cells by Heath Rigney[edit]

White Blood cell
Red Blood cell
Platelet

White Blood Cells[edit]

White Blood cells,also known as leukocytes, are the immune system in the body, they prevent diseases and infection. When a microbe,is seen in a the body by a white blood cell, it is it's job to get rid of it. They are filled with cytoplasm. They can get rid of the microbes by:

Produce antibodies that will get rid of the microbe.

Devour it.

Types of White Blood Cells[edit]

There are 7 different types of white blood cells in the human body:

Neutrophil

Eosinophil

Basophiles

Lymphocyte

Monocyte

Macrophage

Dendritic cells

But there are 5 main ones, which are Neutrophil, Eosinophil, Basophil, Lymphocyte and Monocyte. Here are some facts: These are divided into two parts granulocytes and agranulocytes. Eosinophils,Basophils and Neutrophils comes under Granulocytes. Lymphocytes and Monocytes comes under Agranulocytes. Granulocytes have visible granules in their body and Agranulocytes do not.

Neutrophil[edit]

Neutrophil is one of the body's main defences against bacteria of fungal infection. They kill bacteria by phagocytosis (ingesting). They can phagocytose around 5-20 bacteria in their lifetime. They only live from 6 hours to a few days. Their main targets are fungi and bacteria. and it also helps our brain

Eosinophil[edit]

Eosinophil deal with parasitic infections. Their main targets are larger parasites. Eosinophil is also the predominant inflammatory cells in allergic reactions. It can live from 8 to 12 days. This is poorly understood

Basophiles[edit]

Basophil also functions in alergic reactions. Basophil releases histamine, which causes the blood vessels to leak and attract more white blood cells, and heparin, which prevents clotting in the infected area so that the white blood cells can reach the bacteria. Basophil can live from a few hours to a few days.

Lymphocyte[edit]

Lymphocte is responsible for immune responses. There are 3 types of lymphocyte cells: B cells, T cells and Natural killer cells. The B cells make antibodies that attach body cells that have been taken over by viruses, and also, when becoming cancerous.

Monocyte[edit]

Monocyte share the phagocytosis function of neutrophils. But Monocyte live much longer as they have the role to present pieces of pathogens, an infectious microbe, to the T cells so that the pathogens may be recognized again and killed. They stay in the blood for 10-20 hours then become macrophages, which can live from months to years. These cells destroy old,damaged and dead cells.

Blood Cell[edit]

Red blood cells (erythrocytes) are the most common blood cell. A single drop of blood contains millions of red blood cells. Red blood cells are constantly traveling through the human body delivering oxygen and removing waste. the body would die if they didn't. Red blood cells are shaped in a biconcave shape so they can squeeze through blood vessels. They have no nucleus in them for space for oxygen. Red blood cells are red because they contain a chemical inside them called hemoglobin which is a bright red color. Hemoglobin contains iron, which makes it a good vehicle to transport oxygen and carbon dioxide. When blood passes through the lungs, the oxygen molecules attach to the hemoglobin. And when the blood passes through the body's tissue, the hemoglobin releases the oxygen to the cells. The empty hemoglobin then bonds with the tissue's carbon dioxide or other waste gases, transporting it back to the lungs and out when you exhale.