Which of the following statements is true? Nicotine from tobacco causes vasodila

Question

Which of the following statements is true? Nicotine from tobacco causes vasodilation. B Diet plays no role in regulating blood pressure. C The blood flow in the encephalon is relatively constant because neurons cannot tolerate ischaemia. D The state of choc corresponds to any situation in which blood vessels contain too much blood. Question 91 Which of the following statements is true? A Pressure is very high in the lymphatic vessels. B The lymphatic system carries to the blood the lipids absorbed in the intestine. C The main lymphoid organ in the organism is the two adrenal glands. Lymph enters through the efferent lymphatic vessel

Explanation / Answer

90) Nicotine is a vasoconstrictor. It constricts the blood vessels and increases blood pressure and heart rate. Diet plays an important role in maintaining blood pressure. High sodium contentin the diet will lead toincrease in blood pressure. The state of choc corresponds to blood vessels containing less blood. The blood supply to encephalon is maintained relatively constant as it cannot tolerate ischemia. So, the answer for this question is option C.

91) Lymphatic vessels are low pressure channels. It carries to the blood the lipids absorbed in the intestine. Many lacteals are present in the villi of the small intestine. Lymph enters through the affarent vessels. The main lymphoid organ in the organism is the spleen. So, the answer for this question is option B.

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