The answer would be: the sympathetic division of the autonomic system.
Sympathetic division of the autonomic system causes the person to enter fight or flight mechanism. All of the changes above will prepare the person for it. Increased breathing will increase oxygen delivery for muscle, sugar release will increases energy produced, inhibition of digestive system conserve the energy,
The smallest structural and functional unit of an organism, typically microscopic and consisting of cytoplasm and a nucleus enclosed in a membrane. Microscopic organisms typically consist of a single cell, which is either eukaryotic or prokaryotic.
A condition in which the force of the blood against the artery walls is too high.
Usually hypertension is defined as blood pressure above 140/90, and is considered severe if the pressure is above 180/120.
