Question
Download Solution PDFWhich blood cells are called 'Soldiers' of the body?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFThe correct answer is WBC.
Key Points
- White Blood Cells (WBCs) are known as the "soldiers" of the body due to their role in defending against infections and foreign invaders.
- WBCs are a crucial component of the immune system, helping to protect the body from bacteria, viruses, and other harmful pathogens.
- There are several types of WBCs including neutrophils, lymphocytes, monocytes, eosinophils, and basophils, each with specific functions in immune response.
- WBCs are produced in the bone marrow and circulate in the blood and lymphatic system.
- The normal range of WBC count in a healthy adult is typically between 4,000 to 11,000 cells per microliter of blood.
Additional Information
- Immune System
- The immune system is the body's defense mechanism against infections and diseases.
- It consists of various organs, cells, and proteins that work together to fight off pathogens.
- Key components of the immune system include WBCs, lymph nodes, spleen, thymus, and bone marrow.
- Types of WBCs
- Neutrophils: The most abundant type, which primarily fight bacterial infections.
- Lymphocytes: Includes T cells and B cells, crucial for adaptive immunity.
- Monocytes: Develop into macrophages and dendritic cells, important for phagocytosis.
- Eosinophils: Combat multicellular parasites and are involved in allergic reactions.
- Basophils: Release histamine and play a role in inflammatory responses.
- Bone Marrow
- Bone marrow is the soft tissue inside bones where blood cells are produced.
- It is responsible for generating WBCs, RBCs, and platelets.
- Hematopoietic stem cells in the bone marrow differentiate into various types of blood cells.
- Immune Response
- Immune response is the body's reaction to foreign substances.
- It involves recognition, attack, and elimination of pathogens.
- Adaptive immune response provides long-term protection through memory cells.
- Leukocyte Count
- Leukocyte count measures the number of WBCs in the blood.
- A high leukocyte count can indicate infection, inflammation, or leukemia.
- A low count may suggest bone marrow problems or autoimmune diseases.
Last updated on Jun 16, 2025
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