Given the characteristics of venular blood pressure, Line D is the one that best represents the pressure of the blood as it flows through veins before returning to the heart .
Blood pressure for the return of blood to the heart, flowing through veins, tends to remain constant and is lower than that of arterial blood pressure.
The basic model of the major circulatory tract is;
- Heart
- Aorta
- Arteries
- Arteriolas
- Capillaries
- Venules
- Veins
- Vena cavas
- Heart, and repeat.
The pressure of blood throughout this circulation decreases gradually. Arterial pressure is high, pulsating and varies around a normal range, due to various factors. Meanwhile Venular blood pressure is much lower and lacks the mechanical factors that cause arterial blood to pulsate, meaning it is graphed as a straight line, decreasing as it nears the heart.
For this reason, The line that best represents the pressure of the blood as it flows through veins before returning to the heart is the lowest line on the graph. We can discard the highest line because it shows increasing pressure, which is not accurate, and discard the 2 middle line because they show pulsation which is absent in veins.
To learn more visit:
https://brainly.com/question/4215574?referrer=searchResults
