Lymphatic System

Which of the following best describes the main function of the lymphatic system?

• Transporting oxygen throughout the body

• Removing waste and toxins, and supporting immune defence

• Producing hormones

• Regulating body temperature

What is the fluid called that circulates within the lymphatic vessels?

• Plasma

• Lymph

• Serum

• Haemoglobin

Which structure acts as a filter for harmful substances in the lymphatic system?

• Arteries

• Lymph nodes

• Capillaries

• Veins

Where are lymph nodes most commonly found in the body?

• Only in the legs

• In clusters throughout the body, especially in the neck, armpits, and groin

• Only in the chest

• Only in the abdomen

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

• Absorbing dietary fats from the digestive tract

• Producing red blood cells

• Maintaining fluid balance

• Defending against infection

What is the role of lymphatic vessels?

• Carry blood away from the heart

• Transport lymph fluid throughout the body

• Store nutrients

• Produce hormones

Which organ is considered the largest lymphatic organ?

• Liver

• Spleen

• Heart

• Kidney

How does the lymphatic system contribute to the immune response?

• By producing insulin

• By filtering pathogens and presenting them to immune cells

• By digesting food

• By regulating blood pressure

Which cells are primarily found in lymph nodes and are important for immune defence?

• Red blood cells

• White blood cells (lymphocytes)

• Platelets

• Neurons

What effect does body massage have on the lymphatic system?

• It slows down lymph flow

• It stimulates lymph flow and drainage

• It blocks lymph vessels

• It increases blood pressure