Neutrophils and eosinophils are both types of white blood cells, also known as leukocytes, that play important roles in the immune system. While they share similarities, like their multi-lobed nucleus, they have distinct functions:
Neutrophils are the most abundant type of white blood cell in the body. They are primarily responsible for fighting bacterial and fungal infections by engulfing and destroying pathogens through a process called phagocytosis.
Eosinophils are less common than neutrophils and are mainly involved in fighting parasitic infections and allergic reactions. They release cytotoxic substances like enzymes and reactive oxygen species that can kill parasites and contribute to inflammation.
Here is a table summarizing the key differences between neutrophils and eosinophils:
| Feature | Neutrophils | Eosinophils |
|---|---|---|
| Function | Phagocytosis of bacteria and fungi | Killing parasites and allergic response |
| Granules | Contain enzymes for bacterial killing | Contain enzymes and reactive oxygen species |
| Nucleus | Multi-lobed | Multi-lobed |
| Abundance | Most abundant white blood cell | Less abundant than neutrophils |
In summary, neutrophils are the first line of defense against bacterial and fungal infections, while eosinophils are crucial for controlling parasitic infections and allergic responses.
