問題詳情
38. In a smooth blood vessel, what is the relationship between blood pressure and the velocity ofblood flow?
(A) When blood pressure is low, velocity is high.
(B) When blood pressure is low, velocity is low.
(C) When blood pressure is high, velocity is low.
(D) Velocity is always constant while blood pressure varies.
(E) Blood pressure is always constant while velocity varies.
參考答案
答案：B
難度：計算中-1
書單：沒有書單，新增
用户評論
【柯韋安】評論
血壓與血流速度之間的關係可以從波伊士意爾定律（Poiseuille's Law）來理解。波伊士意爾定律是一個描述流體在管道中流動的物理定律，其中一個重要的參數就是壓力差，壓力差越大，流體（在這裡是血液）的流速就越快。