According to the Bernoulli law, the sum of the static, dynamic and hydrostatic pressures is constant and does not depend on the cross section of the pipe.
To maintain this constancy, the flow through the wide pipe must be greater than through a narrow tube of the same length. In this case, the static pressure for a wide pipe is higher than for a narrow one.
When measuring blood pressure, it is the static pressure that is measured. Dynamic pressure can only be measured if a manometer is inserted into the vessel. The amount of blood is constant and the system is closed, therefore, as the cross section of the vessel from cognac increases, the flow can not increase and the sum of all pressures drops. Since the speed of blood depends on the dynamic pressure for vital processes, it does not change. Static pressure drops.
Selivan is right.