Concept 7.2 Lecture Video and Quiz

What is the primary role of the lymphatic system?

• To regulate body temperature

• To produce red blood cells

• To return leaked fluids to the blood

• To transport oxygen throughout the body

How does the lymphatic system help maintain blood pressure?

• By filtering toxins

• By returning leaked fluids to the blood

• By generating heat

• By producing hormones

What are the main structures of the lymphatic system?

• Bones, muscles, and skin

• Lymphatic vessels, lymph, and lymph nodes

• Arteries, veins, and capillaries

• Heart, lungs, and brain

What is the difference between lymphatic capillaries and blood capillaries?

• Blood capillaries are only found in the heart

• Lymphatic capillaries are more permeable

• Lymphatic capillaries are less permeable

• Blood capillaries transport lymph

In which direction do lymphatic vessels transport lymph?

• In both directions

• They do not transport lymph

• Away from the heart

• Towards the heart

What is the final destination of lymph in the body?

• The liver

• The brain

• The kidneys

• The heart

What is the role of lymphatic vessels in the intestines?

• To produce enzymes

• To filter blood

• To absorb fats

• To store nutrients

Which cells are the main warriors of the immune system?

• Neurons

• Lymphocytes

• Platelets

• Red blood cells

Where do T cells mature?

• In the spleen

• In the bone marrow

• In the thymus

• In the lymph nodes

What is the primary function of the thymus?

• To store iron

• To filter blood

• To produce antibodies

• To mature T cells