The Velocity of Blood Flow Is the Lowest in Capillaries

question 33

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 are far from the heart, and blood flow slows as distance from the heart increases.
• 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:

Numerical Sequence

An ordered list of numbers arranged in a particular way following a specific rule or pattern.

Pound (#) Sign

A symbol used to denote numbers in some contexts and "pound" in weight or hashtag in social media contexts.

CPT Coding Manual

A comprehensive and standardized publication that contains the codes used by medical professionals to document and bill for procedures and services.

Prefixes And Suffixes

Affixes added to the beginning or end of a word to modify its meaning or create a new word.