The Velocity of Blood Flow Is the Lowest in Capillaries

question 21

Multiple Choice

The velocity of blood flow is the lowest in capillaries because ________.

• A) the capillary walls are not thin enough to allow oxygen to exchange with the cells
• B) the capillaries have internal valves that slow the flow of blood
• C) the diastolic blood pressure is too low to deliver blood to the capillaries at a high flow rate
• D) the systemic capillaries are supplied by the left ventricle, which has a lower cardiac output than the right ventricle
• E) the total cross-sectional area of the capillaries is greater than the total cross-sectional area of the arteries or any other part of the circulatory system

---

Definitions:

Ludlow Massacre

An event in 1914 where a violent conflict between striking coal miners and the Colorado National Guard resulted in numerous deaths, including women and children.

Rockefeller-Owned Companies

Enterprises and corporations that were owned or controlled by John D. Rockefeller, most famously including Standard Oil, which played a significant role in the development of the U.S. oil industry.

Sexual Norms

Socially established behaviors and expectations regarding sexual activities and relationships.

Heterodoxy

Denotes beliefs, opinions, or doctrines that deviate from established or traditional standards, especially in religious or philosophical contexts.