Answer :
The correct fact is that vessel length, vessel diameter, and blood viscosity all affect peripheral resistance.
Peripheral resistance, a key determinant of blood flow in the circulatory system, is influenced by several factors. Among the given options, three factors affect peripheral resistance. First, vessel length plays a role as longer vessels offer greater resistance to blood flow compared to shorter vessels.
Second, vessel diameter significantly impacts resistance, with narrower vessels leading to increased resistance. Finally, blood viscosity, referring to the thickness and stickiness of the blood, affects resistance as higher viscosity hinders smooth flow.
Turbulence, though mentioned as an option, does not directly influence peripheral resistance. Understanding and considering these factors is crucial in assessing and managing conditions related to blood flow and vascular health.
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