Out-of-pocket expense. An out-of-pocket expenses (or out-of-pocket cost) is the direct outlays of cash that may be later reimbursed. In operating a vehicle, gasoline, parking fees and tolls are considered out-of-pocket expenses for the trip.
In the cold, the small blood vessels on the surface of our body get smaller to keep warm blood deeper inside. In the heat, they dilate to release heat from the body. If you have been in a warm climate for a long time and return to a cold one, it may take a little longer for your circulation to adjust.â.
The body is very good at keeping its temperature within a narrow, safe range in spite of large variations in temperatures outside the body. When you are too hot, the blood vessels in your skin expand (dilate) to carry the excess heat to your skin's surface.You may begin to sweat, and as the sweat evaporates, it helps cool your body. When you are too cold, your blood vessels narrow (contract) so that blood flow to your skin is reduced to conserve body heat.ody temperature is a measure of the body's ability to generate and get rid of heat.