Question: is arterial pressure the same as blood pressure

Answer: Yes, Blood pressure (BP) is the pressure of circulating blood on the walls of blood vessels. Used without further specification, ``blood pressure'' usually refers to the pressure in large arteries of the systemic circulation. Blood pressure is usually expressed in terms of the systolic pressure (maximum during one heart beat) over diastolic pressure (minimum in between two heart beats) and is measured in millimeters of mercury (mmHg), above the surrounding atmospheric pressure (considered to be zero for convenience).