What are leukocytes in a cat?

What are leukocytes in a cat? - briefly

Leukocytes in cats are white blood cells that are essential components of the immune system, responsible for defending against infections and diseases.

What are leukocytes in a cat? - in detail

Leukocytes, commonly known as white blood cells, are a vital component of a cat’s immune system, responsible for defending the body against infections, diseases, and foreign invaders. These cells are produced in the bone marrow and circulate throughout the bloodstream and lymphatic system. Leukocytes are broadly categorized into five types: neutrophils, lymphocytes, monocytes, eosinophils, and basophils, each with distinct functions. Neutrophils are the first responders to bacterial infections, engulfing and destroying pathogens through phagocytosis. Lymphocytes, including B cells and T cells, are central to adaptive immunity, producing antibodies and coordinating immune responses against viruses and other threats. Monocytes transform into macrophages or dendritic cells, which consume cellular debris and pathogens while presenting antigens to lymphocytes for further immune activation. Eosinophils primarily combat parasitic infections and modulate allergic reactions, while basophils release histamine and other chemicals to initiate inflammatory responses. The balance and count of these cells are critical indicators of a cat’s health, with abnormalities often signaling underlying conditions such as infections, inflammation, or immune disorders. Veterinarians routinely analyze leukocyte levels through complete blood count (CBC) tests to diagnose and monitor diseases. Maintaining a healthy immune system in cats, supported by proper nutrition, vaccinations, and regular veterinary care, ensures optimal leukocyte function and overall well-being.