Immune System

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Across
  1. 3. enhances the ability of phagocytic cells, such as macrophages and neutrophils, to recognize and engulf pathogens such as bacteria and viruses
  2. 4. is secreted by fibroblasts and slows inflammation in a damaged area
  3. 5. absorbs dietary fats and fat-soluble vitamins from the intestine through the intestinal lymphatic vessels. This lymph, rich in fats, is known as "chyle"
  4. 6. immune response tailored to particular pathogens. it provides a targeted and long-lasting defense, characterized by its ability to remember past infections.
  5. 8. has a Crucial role in immune surveillance and the production of antibodies, particularly immunoglobulin A (IgA) which is vital for mucosal immunity
  6. 10. When pathogens are detected, dendritic cells present antigens to T cells, initiating an immune response. B cells can also be activated to produce antibodies.
  7. 11. is secreted by t cell and NK cells and stimulates macrophage activity
  8. 12. consists of lymphoid follicles that contain immune cells, primarily b cells, and t cells, which are essential for immune responses
Down
  1. 1. produce through the action of the enzyme kallikrein on kininogen. this system plays a role in blood pressure regulation and inflammation
  2. 2. also known as innate immunity is the body's first line of defense against pathogens. it provides a general response to a wide range of invaders, without targeting specific pathogens.
  3. 7. Lymph is eventually returned to the bloodstream via the thoracic duct (the largest lymphatic vessel)which empties into the left subclavian vein, or the right lymphatic duct which drains into the right subclavian
  4. 9. is produced by cells infected with viruses. it attracts and stimulates NK cells and enhances resistance to viral infection.