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Questions and Answers
What is the primary function of erythrocytes?
What is the primary function of erythrocytes?
- Fight infections
- Produce antibodies
- Clot blood
- Carry oxygen and carbon dioxide (correct)
Which type of blood cell is responsible for protecting the body against diseases?
Which type of blood cell is responsible for protecting the body against diseases?
- Erythrocytes
- Leukocytes (correct)
- Thrombocytes
- Plasma cells
Which component of blood is primarily involved in wound healing?
Which component of blood is primarily involved in wound healing?
- Leukocytes
- Erythrocytes
- Plasma
- Thrombocytes (correct)
What is a distinguishing feature of thrombocytes?
What is a distinguishing feature of thrombocytes?
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Which type of leukocyte is known to fight parasites?
Which type of leukocyte is known to fight parasites?
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Study Notes
Erythrocytes (Red Blood Cells)
- Oxygen transport from lungs to body tissues.
- Carbon dioxide transport from tissues back to lungs.
- Biconcave disc shape optimizes surface area for gas exchange.
- Flexible structure enables navigation through narrow capillaries.
Leukocytes (White Blood Cells)
- Crucial role in immune response and disease defense.
- Diverse types with specialized functions:
- Neutrophils: Phagocytic cells that engulf and destroy pathogens.
- Lymphocytes: Key players in adaptive immunity (B cells and T cells).
- Monocytes: Develop into macrophages, clearing cellular debris and pathogens.
- Eosinophils: Combat parasitic infections and allergic reactions.
- Basophils: Release histamine and other mediators in allergic and inflammatory responses.
Thrombocytes (Platelets)
- Essential for hemostasis (blood clotting).
- Initiate and participate in the coagulation cascade to stop bleeding.
- Small, anucleate cell fragments derived from megakaryocytes.
- Form platelet plugs to seal injured blood vessels.
Blood Component Importance
- Proper functioning of blood components is essential for maintaining overall health and homeostasis.
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