Lymphatic System and Immune Function

This video tutorial covers the lymphatic and immune systems, focusing on their dual roles in fluid transport and immune protection. It explains the structure and function of lymphatic vessels, lymph nodes, and key organs like the spleen and thymus. The video also introduces medical terminology related to these systems and discusses conditions such as lymphedema and the role of antigens in immune response.

What is the primary function of the lymphatic vessels?

• To pick up large particles and interstitial fluid

• To carry nutrients to cells

• To remove carbon dioxide from the body

• To transport oxygen to tissues

How does lymph differ from plasma?

• Lymph contains more red blood cells

• Lymph lacks clotting proteins

• Lymph has a higher sugar content

• Lymph is thicker than plasma

What is the significance of lymph nodes in the lymphatic system?

• They store nutrients

• They produce red blood cells

• They filter out pathogens

• They regulate blood pressure

Which organ is responsible for removing old red blood cells?

• Liver

• Spleen

• Kidney

• Thymus

Which cells are developed in the thymus gland?

• Platelets

• T cells

• Red blood cells

• B cells

What happens to the thymus gland as a person ages?

• It becomes more active

• It shrinks and may disappear

• It enlarges

• It remains the same size

Why is early exposure to pathogens important?

• It has no effect on immunity

• It causes frequent illnesses

• It helps develop a stronger immune function

• It weakens the immune system

What does the term 'splenectomy' refer to?

• Inflammation of the spleen

• Surgical removal of the spleen

• Enlargement of the spleen

• Infection of the spleen

What is the role of antigens in the immune system?

• They destroy pathogens

• They identify foreign invaders

• They transport nutrients

• They produce antibodies

What does the term 'lymphedema' describe?

• A swelling of the spleen

• An infection of the lymph nodes

• A condition where lymph fluid accumulates in tissues

• A type of cancer