Blood Functions and Importance

What is one of the primary functions of blood in the body?

Which type of white blood cell is primarily responsible for responding first to bacterial infections?

What is the approximate percentage of red blood cells in whole blood?

Which type of white blood cell is primarily associated with allergic reactions?

What role do platelets play in the blood?

What binds to hemoglobin in red blood cells?

Which type of blood cell is involved in regulating the immune response?

What is the main function of plasma in the blood?

Which white blood cells are responsible for cleaning up dead cells?

What is not a role of blood in the body?

Functions of Blood

Transports oxygen, nutrients, and antibodies to cells and tissues.
Carries waste products to the liver and kidneys for elimination.
Regulates body temperature through heat distribution.
Forms blood clots via fibrin to control bleeding.

Types of White Blood Cells (WBCs)

Neutrophils: First responders to bacterial and viral infections.
Eosinophils: Involved in allergic reactions and asthma responses.
Basophils: Role in inflammatory reactions and the release of histamine.
Monocytes: Clean up dead cells and produce antibodies.
Lymphocytes: Fight infections by producing antibodies and regulating immune responses.

Components of Blood

Red Blood Cells (RBCs): Also known as erythrocytes, comprise 40-45% of whole blood (hematocrit).
- Anucleated cells (lack a nucleus).
- Hemoglobin within RBCs binds to oxygen and carbon dioxide.
White Blood Cells (WBCs): Comprise about 1% of total blood volume, crucial for immune function.
- Neutrophils: Most common type, primarily fight bacteria.
- Lymphocytes: Second most common type, regulate immune responses and attack infections.

This quiz explores the vital roles of blood in the human body, including the transportation of oxygen, nutrients, and waste products. It also covers the role of blood in immune responses and clotting processes. Discover how blood contributes to overall health and homeostasis.