HISTOLOGY
BLOOD VESSELS
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
Blood pressure is ____ in veins than arteries.
|
Higher
|
|
Lower
|
|
Either A or B
|
|
None of the above
|
Explanation:
Detailed explanation-1: -In general, blood pressure decreases from arteries to veins, and this is because of the pressure overcoming the resistance of the vessels. The greater the change in resistance at any point in the vasculature, the greater the loss of pressure at that point.
Detailed explanation-2: -Blood pressure is lower in veins than capillaries, because there needs to be enough pressure in the capillaries to ensure the blood and oxygen is delivered to all the tissues and cells in the body.
Detailed explanation-3: -Blood pressure is highest at the start of its journey from the heart-when it enters the aorta-and it is lowest at the end of its journey along progressively smaller branches of arteries.
There is 1 question to complete.