Understanding Coronary Circulation and Blood Flow in Cardiac Muscle

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What is the primary function of white blood cells in combating infectious and toxic agents?

Destroying invading bacteria or viruses by phagocytosis (correct)

Stimulating the production of cortisol to combat diseases

Secreting insulin to fight off infections

Producing red blood cells for immunity

Where are white blood cells formed in the body?

Entirely in the lymph tissue

Partially in the liver and partially in the spleen

Partially in the bone marrow and partially in the lymph tissue (correct)

Entirely in the bone marrow

What is the role of antibodies and sensitized lymphocytes produced by white blood cells?

Destroying or inactivating the invading bacteria or viruses (correct)

Stimulating the production of mucus to trap pathogens

Forming a protective barrier around affected tissues

Causing inflammation at the site of infection

What is the main function of tissue cells derived from leukocytes in preventing disease?

Working with white blood cells to prevent disease by destroying invaders or forming antibodies Signup and view all the answers

Which type of white blood cell is responsible for ingesting invading organisms through phagocytosis?

Neutrophils Signup and view all the answers

What is the normal percentage of monocytes in the total white blood cell count?

5.3% Signup and view all the answers

Where are lymphocytes and plasma cells mainly produced?

Various lymphogenous tissues Signup and view all the answers

What is the life span of lymphocytes in the body?

Weeks or months Signup and view all the answers

Which enzyme in tears destroys certain bacteria in the eyes?

Lysozyme Signup and view all the answers

What is the combined effect of pepsin and HCl in gastric juice?

Breaking down pathogens Signup and view all the answers

What do lymphocytes and fibroblasts produce in response to viruses or tumor cells?

Interferons Signup and view all the answers

What is the role of interferon released from virus-infected cells?

Inhibiting viral replication Signup and view all the answers

Which enzyme catalyzes the reaction between H2O2 and chloride ions to form hypochlorite?

Peroxidase Signup and view all the answers

What is the substance released by mast cells and basophils that can prevent blood coagulation?

Heparin Signup and view all the answers

Which type of leukemia begins by cancerous production of young myelogenous cells in the bone marrow?

Acute myelogenous leukemia Signup and view all the answers

What is the function of mechanical barriers in innate immunity?

Prevent the entry of pathogens Signup and view all the answers

What is the main function of neutrophils and tissue macrophages?

Attacking and destroying bacteria, viruses, and other harmful agents Signup and view all the answers

What is the process through which white blood cells enter the tissue spaces?

Diapedesis Signup and view all the answers

What is the phenomenon known as when chemical substances in the tissues cause both neutrophils and macrophages to move toward the source of the chemical?

Chemotaxis Signup and view all the answers

What happens once a foreign particle has been phagocytized by neutrophils or macrophages?

Lysosomes and other cytoplasmic granules release bactericidal agents to kill the particle Signup and view all the answers