Question
Arteries are adapted to have thick, flexible walls. Which of the following best explains why? To allow blood to pass through in two directions To carry blood at high pressures To allow large particles to with the blood To stretch as the body grows
Answer
4
(223 Votes)
Timothy
Expert · Tutor for 3 years
Answer
To carry blood at high pressures
Explanation
## Step 1: Understanding the Physiology of Human Blood Circulation Arteries, in the human body, are built to transport blood from the heart to various parts of the body. Their construction adapts to this role specifically.## Step 2: Arterial Wall Structure Arterial layers are thick and flexible to keep up with the heart's pressure. This structure ensures that blood is moved effectively.## Step 3: Considering the Answer ChoicesLooking at the options given, we're drawn to the one that agrees with our analysis from Steps 1 and 2. Putting the other options in the view:- "To allow blood to pass through in two directions" is not necessarily true, as arteries, unlike veins, carry blood in one direction--away from the heart.- "To allow large particles to move with the blood" is misleading. While arteries do transport nutrients and oxygen all of which could be considered large particles, it is not particularly the reason for the structure of arterial walls.- "To stretch as the body grows" could theoretically hold some truth, but isn't the primary reason. There are adults with dwarfism who possess normal arterial structures despite their smaller anatomy.Thus by process of elimination and by understanding the physiological function of arteries serve the most suitable answer becomes apparent.