The controversial restoration by Sir Arthur Evans of the ruins of the palace of Knossos. Greek archeologist Nikolaos Platon devised a chronology of the civilization based on excavations of Minoan palaces. He divides the civilization into the following eras:
Video: Adrenal Glands: Epinephrine, Norepinephrine & Stress Adaptation The adrenal medulla is the central portion of the adrenal gland. In this lesson, you will learn about the two hormones secreted by the adrenal medulla - epinephrine and norepinephrine - and how they help you deal with short-term stressors. Biology 105: Anatomy & Physiology / Science Courses
Adrenaline, or epinephrine, and cortisol, or hydrocortisone, are stress hormones secreted from the adrenal glands, which sit above the kidneys. Though both chemicals are stress hormones, adrenaline and cortisol play different biochemical roles. Adrenaline primarily binds to receptors on the heart and heart vessels. This increases heart rate, force of muscle contraction and respiration. Cortisol binds to receptors on the fat cells, liver and pancreas, which increases glucose levels available for muscles to use. It also temporarily inhibits other systems of the body, including digestion, growth, reproduction and the immune system. Video of the Day