The adrenal glands sit on top of the kidneys. They regulate the bodyâs response to stress by making hormones, including adrenaline and cortisol. People use adrenal extract taken from animals in the hope that the extract will function like the bodyâs adrenal gland.DRENAL EXTRACT Overview Information. Adrenal extract is a chemical that is made from the adrenal glands of slaughtered cows, pigs, and sheep. Adrenal glands make certain hormones. People use the extract as a medicine.
The earth's crust consists of a number of sections or plates that float on the molten rock of the mantle. These plates move on convection currents caused by heat rising from the center of the earth. The hot magma rises and spreads out on the surface, creating new crust.
This allows the plates to float on top of the denser material. Movements deep within the Earth, which carry heat from the hot interior to the cooler surface, cause the plates to move very slowly on the surface, about 2 inches per year. There are several different hypotheses to explain exactly how these motions allow plates to move. Interesting things happen at the edges of plates.