Ambient temperature is the term used to identify the surrounding or environmental temperature. It is the nature and tendency of all things to approach ambient temperature. If you are in a room, then the ambient temperature is the room temperature.
An arteriole is a small-diameter blood vessel in the microcirculation that extends and branches out from an artery and leads to capillaries. Arterioles have muscular walls and are the primary site of vascular resistance. The greatest change in blood pressure and velocity of blood flow occurs at the transition of arterioles to capillaries.
Arteriosclerosis is a group of diseases of the arteries. One of the most common types of arteriosclerosis is atherosclerosis, a condition in which fatty deposits of cholesterol form in the arteries. These deposits can break away and travel to the heart or brain, causing heart attacks or strokes.