Quiz on the Lymphatic System

What are the two main functions of the lymphatic system?

• Transport nutrients to the blood and play an essential role in body growth

• Transport fluids back to the blood and play an essential role in body defense and resistance to disease

• Transport oxygen to the blood and regulate body temperature

• Regulate blood pressure and remove waste products from tissues

Which statement best describes the lymphatic system's flow direction?

• It is a two-way system towards and away from the heart.

• It is a one-way system towards the heart.

• It is a one-way system away from the heart.

• It is a circular system with no specific direction.

What happens to the minivalves in lymphatic capillaries when the pressure inside is higher?

• They open wider to allow more fluid to enter.

• They detach from the capillary wall.

• They close to prevent fluid from leaking out.

• They dissolve into the lymph fluid.

What does the Thoracic Duct collect lymph from?

• Right abdomen, pelvis, right limbs, right half of head, neck and chest

• Entire body

• Lower abdomen, pelvis, lower limbs, left half of head, neck and chest

• Upper abdomen, chest, and right arm

Where are lymph nodes located in the body?

• Only in the neck and armpits

• Throughout the body, including the neck, armpits, and groin

• Solely in the lower extremities

• Exclusively in the head

What is one of the primary functions of lymph nodes?

• Produce red blood cells

• Filter lymph before it is returned to the blood

• Store excess nutrients

• Regulate body temperature

What is the role of the spleen in the lymphatic system?

• To produce bile

• To regulate body temperature

• To filter blood and help fight infections

• To store urine

What are Peyer's patches and where are they found?

• They are lymphoid nodules found in the small intestine

• They are glands that produce digestive enzymes in the stomach

• They are clusters of neurons in the brain

• They are air sacs in the lungs for gas exchange

What is the function of the hormones produced by the thymus?

• To regulate heart rate

• To digest food

• To program T cells

• To control blood pressure

How do antibodies help in defending the body against pathogens?

• By increasing body temperature

• By directly destroying pathogens

• By marking pathogens for destruction by other cells

• By repairing damaged tissues