How do you pronounce the word arteries?

How do you pronounce arterial blood?

What is the meaning of arterial?

(Entry 1 of 2) 1a : of or relating to an artery. b : relating to or being the bright red blood present in most arteries that has been oxygenated in lungs or gills. 2 : of, relating to, or constituting through traffic.

How do you say the word atrium?