List some of the changing brought about by adrenaline
Answers
Adrenaline, also known as epinephrine, is our “fight-or-flight” hormone. It increases heart rate and contractility in order to get our blood pumping and oxygen to our muscles and brain under conditions of physiologic stress, and will help to maintain blood pressure during blood loss or dehydration.
Adrenaline is a survival hormone. It helps us be fast or strong under threat. When humans encounter danger, we have two options: fight off the predator, or run for the hills. Each of these responses requires muscle strength. When our amygdala senses danger, it reaches out to the hypothalamus, Adrenaline then triggers the physiological changes our body will need to attack, defend, or run away. Even before we react, or choose a course of action, our heart is already rushing oxygenated blood to our muscles, so we’ll be ready.
Effects of Adrenaline?
The immediate impact of an adrenaline surge:
Eyes dilate.
Heart beats faster.
Sweat increases.
Bronchioles dilate (so we can get more oxygen).
Blood vessels dilate (enlarge) in our muscles.
Blood vessels constrict in our digestive tract to slow digestion.
Kidneys make more renin (to increase blood pressure).
Glucose production increases, for energy.
P.s; Mark as brainliest.