Asked by Kristin Sfero on Jul 12, 2024
Verified
The greatest resistance to blood flow and therefore the greatest drop in pressure occurs as blood passes through the ________.
A) venules
B) large arteries
C) large veins
D) arterioles
Venules
Small veins that allow deoxygenated blood to return from the capillary beds to larger veins.
Arterioles
Small arteries that lead to capillaries, controlling blood flow and pressure through regulation of their diameter.
Large Arteries
Blood vessels that carry blood away from the heart, characterized by their large diameter and elastic walls to withstand high pressure.
- Acquire an understanding of the physiological principles that regulate blood flow, such as Poiseuille's and Laplace's laws.
Verified Answer
LA
Laura AllsenJul 18, 2024
Final Answer :
D
Explanation :
The greatest resistance to blood flow and the most significant drop in pressure occur in the arterioles. This is because arterioles are small-diameter blood vessels that regulate blood flow to various parts of the body by constricting or dilating, thus controlling resistance and blood pressure.
Learning Objectives
- Acquire an understanding of the physiological principles that regulate blood flow, such as Poiseuille's and Laplace's laws.