Eosinophils Archives | Microbe Notes

Eosinophils- Definition, Structure, Immunity and Functions

May 3, 2021 by Anupama Sapkota

What are Eosinophils? Definition of Eosinophils Eosinophils are motile phagocytic cells that play an important homeostatic role in providing defense against parasitic infections. Eosinophils are bone marrow-derived granulocytes that remain in the bloodstream for a shorter period of time and mostly reside in tissues. The functions of eosinophils are multifaceted, including antigen presentation, the release of peptides, lipids, and cytokine …

Blood Cells- Definition and Types with Structure and Functions

October 29, 2020 by Anupama Sapkota

Blood Cells Definition Blood cells, also known as hematocytes, hemocytes, or hematopoietic cells, are cells produced mostly in the blood and are synthesized primarily in the red bone marrow. Blood cells make up about 45% of the blood volume, while the rest (55%) is occupied by blood plasma. Blood contains three different types of blood cells, namely, red blood cell …

Cells of the immune system

February 4, 2021October 26, 2017 by Sagar Aryal

The cells that serve specialized roles in innate and adaptive immune responses are phagocytes, dendritic cells, antigen-specific lymphocytes, and various other leukocytes that function to eliminate antigens. Although most of these cells are found in the blood, their responses to microbes usually occur in lymphoid and other tissues. Phagocytes Phagocytes, including neutrophils and macrophages, are cells whose primary function is …