Biology
- #59 The Immune Response - Lymphocytes
Lymphocytes, unlike phagocytes, act against specific pathogens. Each lymphocyte contains a set of genes that codes for the production of a particular type of receptor. We have many million different types, each producing just one type of receptor....
- # 58 The Immune System - Phagocytes
Credit: Pass My Exams.The human immune system is made up of the organs and tissues involved in destroying pathogens inside the body. There are 2 main groups of cells involved: ? phagocytes: ingest and digest pathogens or infected cells; ? lymphocytes: ...
- Myeloblast
Term: myeloblastLiterally meaning: ?immature or precursor cell of bone marow (or core)?Origin: Anc Greek??????/myelos(=bone marow, core)>???/myo(=be enclosed)+ ??????> blasty (=sprout, germ) >?????/valo(=push, throw) Coined/HistoryIn 1898,...
- Immunity And Immune System
IMMUNE SYSTEM It is the system that gives immunity to the body by recognizing, responding and remembering foreign antigens. It plays role in allergic reaction, auto-immune disease and organ transplantation. It includes lymphoid organs, tissues, cells...
- Comparison Between Rbc And Wbc
RBC (Red Blood Cells or Erythrocytes) WBC (White Blood Cells or Leucocytes) 1. Red coloured due to presence of haemoglobin Colourless 2. Nucleus, Golgi complex, mitochondria etc...
Biology
Comparison of different types of WBCs (White Blood Cells)
Comparison of different types of WBCs (White Blood Cells or Leucocytes)
| Characteristics | Neutrophils (Heterophils) | Basophils (Cyanophils) | Eosinophils (Acidophils) | Monocytes | lymphocytes |
| Percentage | 62% | 0.5-2 % | 2-4 % | 5.3% | 30% |
| Diameter | 10-12 mm | 8-10 mm | 10-15 mm | 12-15 mm | 8-12 mm |
| Nucleus | Multi-lobed | S-shaped | Bilobed | Kidney shaped | Rounded |
| Cytoplasm | Neutrophilic | Basophilic | Eosinophilic | Basophilic | Basophilic |
| Granules | Fine granules | Coarse granules | Coarse granules | Absent | Absent |
| Lifespan | 10-12 hrs | 8-12 hrs | 14 hrs | 10-20 hrs | Months to years |
| Site of Formation | Red bone marrow | Red bone marrow | Red bone marrow | Bone marrow, spleen and lymph nodes | Bone marrow, lymph nodes and thymus |
| Functions | Soldier acting as phagocytes | Secretes Serotonin, heparin & histamine | Anti-allergic and healing of wounds | Scavengers, phagocytes | Antibodies formation |
| Stain | Violet with neutral dyes. Purple with Romanovsky stain | Blue with basic dye like methylene blue. Purple black with Romanovsky stain | Red with acidic dye like eosin. Orange red with Romanovsky stain | Greyish blue with Romanovsky stain | Pale blue with Romanovsky stain |
- #59 The Immune Response - Lymphocytes
Lymphocytes, unlike phagocytes, act against specific pathogens. Each lymphocyte contains a set of genes that codes for the production of a particular type of receptor. We have many million different types, each producing just one type of receptor....
- # 58 The Immune System - Phagocytes
Credit: Pass My Exams.The human immune system is made up of the organs and tissues involved in destroying pathogens inside the body. There are 2 main groups of cells involved: ? phagocytes: ingest and digest pathogens or infected cells; ? lymphocytes: ...
- Myeloblast
Term: myeloblastLiterally meaning: ?immature or precursor cell of bone marow (or core)?Origin: Anc Greek??????/myelos(=bone marow, core)>???/myo(=be enclosed)+ ??????> blasty (=sprout, germ) >?????/valo(=push, throw) Coined/HistoryIn 1898,...
- Immunity And Immune System
IMMUNE SYSTEM It is the system that gives immunity to the body by recognizing, responding and remembering foreign antigens. It plays role in allergic reaction, auto-immune disease and organ transplantation. It includes lymphoid organs, tissues, cells...
- Comparison Between Rbc And Wbc
RBC (Red Blood Cells or Erythrocytes) WBC (White Blood Cells or Leucocytes) 1. Red coloured due to presence of haemoglobin Colourless 2. Nucleus, Golgi complex, mitochondria etc...