a) Which of the following statements about the lymphatic system is FALSE? T and
ID: 63301 • Letter: A
Question
a)
Which of the following statements about the lymphatic system is FALSE?
T and B cells, assisted by macrophages, recognize foreign cells, cancer cells and toxins.
Lymphatic vessels return excess interstitial fluid to the blood.
Lymphatic tissue initiates highly specific responses directed against particular microbes.
Lymphatic vessels transport most absorbed nutrients and vitamins from the digestive tract to the blood.
b)
Which of the following occurs as a result of the presence of lacteals in the wall of the intestine?
All end products of digestion are carried by lymph.
The lymph receives digested milk sugars, which gives the lymph its creamy color.
Lymph enters the hepatic portal circulation.
Most dietary fats do not enter the hepatic portal circulation
T and B cells, assisted by macrophages, recognize foreign cells, cancer cells and toxins.
Explanation / Answer
1. The statement Lymphatic vessels return excess interstitial fluid to the blood is false. Because it removes intestinal fluid from tissue not from blood.
2. Most dietary fats do not enter the hepatic portal circulation - Since, the dietary fats are absorbed by lacteal in the wall of the intestine.
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