- Advertisement -
NURSING EXAMINATIONMCQ on Reticuloendothelial System: Functions

MCQ on Reticuloendothelial System: Functions

MCQ on Reticuloendothelial System: Functions

Frequently Asked MCQ quiz on the Reticuloendothelial System Questions with Answers – MCQ Quiz for Competitive Exam Preparation – These questions given will be useful for competitive exams preparation. We will be updating more mcq regularly, please follow our website regularly.

The reticuloendothelial system (RES), also known as the mononuclear phagocyte system (MPS), is a network of cells and tissues found throughout the body that play a crucial role in the immune response, filtration of foreign particles, and recycling of aged or damaged cells. It includes various types of cells, primarily macrophages and dendritic cells, along with specialized tissues such as the spleen, liver, lymph nodes, and bone marrow.

What is the primary function of the reticuloendothelial system (RES)?

a) Oxygen transport

b) Immune defense

c) Blood clotting

d) pH regulation

Answer: b) Immune defense

Which of the following is NOT a component of the reticuloendothelial system?

a) Liver

b) Spleen

c) Bone marrow

d) Lymph nodes

Answer: d) Lymph nodes

FOLLOW YOUTUBE CHANNEL FOR MORE MCQS CLICK HERE

What is the role of the liver in the reticuloendothelial system?

a) Phagocytosis of pathogens

b) Production of antibodies

c) Storage of iron

d) Production of red blood cells

Answer: a) Phagocytosis of pathogens

Which organ in the reticuloendothelial system is responsible for the filtration of blood and removal of old or damaged red blood cells?

a) Liver

b) Spleen

c) Bone marrow

d) Lymph nodes

Answer: b) Spleen

What is the function of Kupffer cells in the liver within the reticuloendothelial system?

a) Phagocytosis of pathogens

b) Production of antibodies

c) Storage of iron

d) Phagocytosis of old red blood cells

Answer: d) Phagocytosis of old red blood cells

Which cells in the bone marrow are involved in the production of blood cells and contribute to the reticuloendothelial system?

a) Osteocytes

b) Adipocytes

c) Hematopoietic stem cells

d) Chondrocytes

Answer: c) Hematopoietic stem cells

What is the role of macrophages in the reticuloendothelial system?

a) Production of antibodies

b) Phagocytosis of pathogens and cellular debris

c) Storage of iron

d) Oxygen transport

Answer: b) Phagocytosis of pathogens and cellular debris

Which of the following is a function of the reticuloendothelial system in relation to iron metabolism?

a) Storage of iron in the liver

b) Release of iron into the bloodstream

c) Transport of iron to bone marrow for erythropoiesis

d) All of the above

Answer: d) All of the above

What is the primary function of the reticuloendothelial system in relation to immune defense?

a) Production of antibodies

b) Phagocytosis of pathogens and foreign particles

c) Storage of lymphocytes

d) Regulation of cytokine production

Answer: b) Phagocytosis of pathogens and foreign particles

Which component of the reticuloendothelial system plays a role in the removal of immune complexes and pathogens from the bloodstream?

a) Liver

b) Spleen

c) Bone marrow

d) Thymus

Answer: b) Spleen

What is the function of the reticuloendothelial system in relation to hematopoiesis?

a) Production of red blood cells

b) Production of white blood cells

c) Maturation of platelets

d) All of the above

Answer: d) All of the above

Which of the following cells are NOT typically found within the reticuloendothelial system?

a) Macrophages

b) Neutrophils

c) Lymphocytes

d) Plasma cells

Answer: b) Neutrophils

What is the role of the reticuloendothelial system in the metabolism of lipids and lipoproteins?

a) Synthesis of lipids

b) Storage of lipids in adipocytes

c) Phagocytosis of lipoproteins

d) Secretion of lipoproteins into the bloodstream

Answer: c) Phagocytosis of lipoproteins

Which organ of the reticuloendothelial system is responsible for the synthesis of complement proteins?

a) Liver

b) Spleen

c) Bone marrow

d) Thymus

Answer: a) Liver

How does the reticuloendothelial system contribute to the removal of cellular debris and foreign particles from the bloodstream?

a) Phagocytosis by macrophages

b) Production of antibodies

c) Release of cytokines

d) Activation of complement proteins

Answer: a) Phagocytosis by macrophages

Which component of the reticuloendothelial system plays a role in the removal of circulating immune complexes?

a) Liver

b) Spleen

c) Bone marrow

d) Lymph nodes

Answer: b) Spleen

What is the function of sinusoidal endothelial cells in the liver within the reticuloendothelial system?

a) Phagocytosis of pathogens

b) Regulation of iron metabolism

c) Synthesis of clotting factors

d) Storage of bile

Answer: b) Regulation of iron metabolism

What is the term for the process by which macrophages engulf and digest foreign particles, cellular debris, and microorganisms?

a) Phagocytosis

b) Pinocytosis

c) Exocytosis

d) Endocytosis

Answer: a) Phagocytosis

Which of the following is NOT a function of the reticuloendothelial system?

a) Hematopoiesis

b) Iron storage and metabolism

c) Lipid synthesis

d) Immune defense

Answer: c) Lipid synthesis

How does the reticuloendothelial system contribute to the removal of aged and damaged red blood cells from circulation?

a) Phagocytosis by Kupffer cells in the liver and macrophages in the spleen

b) Activation of complement proteins

c) Production of antibodies

d) Release of cytokines

Answer: a) Phagocytosis by Kupffer cells in the liver and macrophages in the spleen

Which cells in the reticuloendothelial system are responsible for antigen presentation to T lymphocytes?

a) Macrophages

b) Neutrophils

c) Eosinophils

d) Basophils

Answer: a) Macrophages

What is the function of reticular fibers in the reticuloendothelial system?

a) Synthesis of antibodies

b) Formation of stromal framework for hematopoiesis

c) Phagocytosis of pathogens

d) Regulation of iron metabolism

Answer: b) Formation of stromal framework for hematopoiesis

FOLLOW YOUTUBE CHANNEL FOR MORE MCQS CLICK HERE

Key functions of the reticuloendothelial system include:

  1. Phagocytosis: Macrophages and dendritic cells within the RES are specialized in engulfing and digesting foreign particles, such as bacteria, viruses, cellular debris, and other harmful substances. This process helps protect the body against infections and removes potentially harmful materials.
  2. Immune Response: Cells of the RES play a vital role in initiating and regulating immune responses. Dendritic cells are particularly important in capturing antigens (foreign substances) and presenting them to other immune cells, such as T cells and B cells, to trigger specific immune responses.
  3. Filtration: Organs like the spleen and liver contain specialized structures that filter the blood, removing old or damaged red blood cells, pathogens, and other particles. This filtration process helps maintain the quality of the circulating blood and eliminates potential threats to the body.
  4. Storage and Recycling: The spleen and liver store blood components, such as red blood cells and platelets, and release them into circulation as needed. They also play a role in recycling components of old or damaged cells for reuse.
  5. Hematopoiesis: The bone marrow, a component of the RES, is responsible for the production of blood cells, including red blood cells, white blood cells, and platelets, through a process called hematopoiesis.

LEAVE A REPLY

Please enter your comment!
Please enter your name here

- Advertisement -
- Advertisement -

Related article

Nurse Info