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Histology of an eosinophil within epithelium, characterized by its bilobed nucleus despite scant visible eosinophilic cytoplasm. Following activation, eosinophils effector functions include production of the following: Cationic granule proteins and their release by degranulation [14] [15] [16]
Eosin is an acidic dye for staining cell cytoplasm, collagen, and muscle fibers. [1] [2] Eosinophilic describes the appearance of cells and structures seen in histological sections that take up the staining dye eosin. [2] Such eosinophilic structures are, in general, composed of protein. [3]
[1] [2] Along with the other granulocytes, eosinophils are part of the innate immune system and contribute to the defense of the body from pathogens. The most widely understood function of eosinophils is in association with allergy and parasitic disease processes, though their functions in other pathologies are the subject of ongoing research. [3]
Eosinophils play a crucial part in the killing of parasites (e.g., enteric nematodes) because their granules contain a unique, toxic basic protein and cationic protein (e.g., cathepsin [14]); [18] receptors that bind to IgG and IgA are used to help with this task. [19]
White blood cells are part of the body's immune system. They help the body fight infection and other diseases. Types of white blood cells are granulocytes (neutrophils, eosinophils, and basophils), and agranulocytes (monocytes, and lymphocytes (T cells and B cells)). [5]
Eosinophils usually account for less than 7% of the circulating leukocytes. [1] A marked increase in non-blood tissue eosinophil count noticed upon histopathologic examination is diagnostic for tissue eosinophilia. [2] Several causes are known, with the most common being some form of allergic reaction or parasitic infection.
This is an accepted version of this page This is the latest accepted revision, reviewed on 31 January 2025. List of organ systems in the human body Part of a series of lists about Human anatomy General Features Regions Variations Movements Systems Structures Arteries Bones Eponymous Foramina Glands endocrine exocrine Lymphatic vessels Nerves Organs Systems Veins Muscles Abductors Adductors ...
The muscle which can 'cancel' or to some degree reverse the action of the muscle. Muscle synergies are noted in parentheses when relevant. O (Occurrences) Number of times that the named muscle row occurs in a standard human body. Here it may also be denoted when a given muscles only occurs in a male or a female body.