Which of the following is a function of the lymphatic system?
oxygen delivery to tissues
absorption of digested fats
transport of absorbed amino acids from the intestine to the liver
thermoregulation
Inflammation of the lymph nodes is called
lymphedema B. lymphangitis C. lymphadenitis D. lymphectomy
A substance that causes blood vessels to dilate is
interferon B. complement C. histamine D. antibody
A process that results in antibody production by the recipient induces a form of immunity called
active immunity B. nonspecific immunity
passive immunity D. immunotherapy
At the lungs,
both oxygen and carbon dioxide diffuse from the blood into the alveoli
oxygen diffuses into the blood and carbon dioxide diffuses into the alveoli
carbon dioxide diffuses into the blood and oxygen diffuses into the alveoli
both oxygen and carbon dioxide diffuse from the alveoli into the blood

Antibiotics are very heavily used in surgical wards to prevent infections that often take hold after surgery. What would you predict might be true of surgical areas in hospitals?