Which lymphatic organs in the pharynx trap pathogens in crypts and pits before destroying them?

• Peyer's patches

• spleen

• tonsils

• thymus glands

Which is not a lymphatic organ?

• tonsil

• spleen

• thymus

• adrenal gland

• MALT

Where are T cells activated?

• Tonsils

• Thymus

• Thyroid

• Bone marrow

Interstitial fluid is located

• around the cells

• inside the cells

• in the blood

• in the lymphatic vessels

Which is NOT a function of the lymphatic system?

• Drains excess interstitial fluid

• transports dietary fats/lipids

• Creates red blood cells

• Houses white blood cells

What is NOT a function of the spleen?

• Removes old and defective red blood cells

• removes and stores iron from dead red blood cells

• Activates T cells

• contains white blood cells that destroy bacteria and remove toxins from the body

Which lymphatic organs are located in a ring around the pharynx?

• thymus

• tonsils

• Peyer's patches

• pancreatic ducts

What is TRUE about the thymus

• It creates red blood cells

• It releases B cells

• It functions in childhood and then atrophies as you get older

• it filters lymph

Where does lymph enter the bloodstream?

• in arteries close to the heart

• nowhere

• in veins close to the heart

• directly into the heart

What do lymphatic vessels have that keeps blood from flowing backwards?

• valves

• cilia

• skeletal muscle

• mucus