USGS Map: Chinook Pass 7 1/2. Chinook Pass Falls is located near Tipsoo Lake on the east side of Mount Rainier National Park. From the junction of Highways 410 and 123 at Cayuse Pass, follow Highway 410 east toward Chinook Pass and Yakima for just over a mile and park in the small pull out at the first switchback.
Constriction of blood vessels means that there is less heat radiated to the environment. This is why prolonged cold can lead to frostbite- the fingers and toes don't get enough blood sent to them and the tissues begin to die. Blood vessels dilate to radiate heat to the environment. Due to Homeostasis (maintanance of the internal environment) when your too cold, your blood vessels constrict to preserve heat which makes blood flow slower. when your warm, your blood flows better and mroe heat is released.
Blood and temperature control-Higher. When we are too hot, blood vessels supplying blood to the skin can swell or dilate (vasodilation). This allows more warm blood to flow near the surface of the skin, where the heat can be lost to the air. This is why some people's skin looks redder when they feel too hot. When we are too cold the blood vessels supplying warm blood to the skin become narrow or constrict (vasoconstriction). This reduces the flow of warm blood near the surface of the skin, and reduces heat loss.