As her car spun out of control on an icy road, mia's muscles tensed and her blood pressure, heartbeat, and pulse increased dramatically. this rapidly occurring chain of internal physical reactions is called the: general adaptation response. stress contagion effect. fight-or-flight response. endocrine system pathway two response.

fight-or-flight response.

Explanation:

The name given to this reaction is strange, but it is simple to understand. Simply put, the fight or flight response is a physiological reaction that occurs in the presence of something that is terrifying or threatening. That is, this response prepares the body to fight or flee from a threat. It is also important to note that this response can be triggered due to real or imagined threats. In both cases, the symptoms that can be experienced in the body are the same: Increased heartbeat, increased circulation, tense muscles and increased blood pressure.

An example of this can be seen in the question above, where Mia went through a terrifying situation and her body responded with the fight and flight mechanism.