Fight Or Flight Response Flashcards

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1
Q

What is the flight or fight response

A

a series of changes that prepare the body for physical action

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2
Q

What physiological changes occur due to fight or flight response

A

Increased heart rate, glucose, muscle tension, blood clotting

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3
Q

Why is the process of flight or fight performed

A

Due to evolutionary process to ensure our survival

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4
Q

Explain the process of flight or fight

A

The threat occurs and the part of the brain called the amygdala is mobilized.

Sends a message to the hypothalamus which communicates with the rest of the body through the sympathetic nervous system (SNS)

SNS prepares the body for action by sending a message to the adrenal medulla to produce adrenaline

Adrenaline increases heart rate, blood pressure, pupil size, oxygen and glucose to the brain suppressing non-essential systems moving blood away to essential areas

Once the threat has passed the parasympathetic nervous system (PNS) restores the system back to normal

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