Question

Which of these factors does NOT strongly determine flow through a single vessel?

1) Vessel radius
2) Blood viscosity
3) Vessel length
4) Blood type
5) Pulmonary veins
6) Systemic veins

Answer 1

Blood type does not strongly determine flow through a single vessel. Vessel radius, blood viscosity, and vessel length are the main factors that determine flow.

Step-by-step explanation:

In the context of blood flow through a single vessel, the factor that does NOT strongly determine flow is blood type. The factors that do strongly determine flow include vessel radius, blood viscosity, and vessel length. These variables are incorporated into Poiseuille's Law, which states that flow is directly proportional to the fourth power of the vessel radius and inversely proportional to vessel length and blood viscosity.