• normal
  • 3) The -amount of blood in the arterial system also contributes to the pressure inasmuch as the blood vessels are elastic, the vessels must be lled to capacity before there is any blood pressure and then overilled to slightly distend the walls to elevate the pressure to the normal physiologic limits. (google.ca)
  • appropriate
  • In this method a needle is introduced directly into the artery and by appropriate connection, a transducer is used to relate the pressure in the artery to a graph or other form 3,319,623 Patented May 16, 1967 ice of recording device. (google.ca)