A hormone elevating heart rate, blood pressure, and blood sugar during emergencies is: _________?
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Answer: A. Epinephrine
Explanation
Epinephrine is the primary hormone released during acute stress to prepare the body for immediate physical action. It stimulates the sympathetic nervous system, causing rapid increases in heart rate and blood pressure. The hormone also causes the liver to release stored glucose into the bloodstream to supply rapid energy. Epinephrine, also known as adrenaline, is synthesized and secreted by the adrenal glands above the kidneys. This hormonal response is a core component of the classic fight-or-flight evolutionary survival mechanism. The rapid physiological changes occur within seconds of perceiving a sudden threat or emergency situation.
Emergency medical kits use synthetic epinephrine injections to treat severe allergic reactions and cardiac arrest. Understanding this chemical surge explains why people experience racing hearts during terrifying or exciting events. Chronically elevated epinephrine levels from ongoing stress can negatively impact long-term cardiovascular health. Glycogen is a complex carbohydrate storage molecule found in the liver and muscles, not a hormone. Testosterone is the primary male sex hormone responsible for reproductive tissue development and secondary traits. Insulin is a pancreatic hormone that lowers blood sugar levels by facilitating cellular glucose uptake.
- Subject
- Psychology
- Category
- Psychology
- Topic
- —
- Difficulty
- medium
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