Final answer:
Laminar flow is the term for non-turbulent blood flow where fluid layers move smoothly and parallel without mixing, contributing to efficient blood circulation.
Step-by-step explanation:
The non-turbulent blood flow lacking vibration of the blood vessel and mixing is properly termed laminar flow.
Laminar flow is defined as the type of fluid flow in which layers of the fluid move smoothly in parallel, without mixing. In contrast to turbulent flow, which is characterized by eddies and swirls, laminar flow allows for layers to slide over one another with minimal friction and disruption.
This property is key for maintaining efficient blood circulation in larger vessels, where the flow is generally laminar, and resistance to flow is minimized. It's also important for understanding the principles of viscosity, which refers to the resistance that occurs due to the interaction between flowing layers within a fluid. Laminar flow ensures that blood moves with efficiency through broad sections of blood vessels, making it vital for normal physiological function.