Which blood cells are called 'Soldiers' of the body?

The 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.