Fight or flight

• What two systems work together during the fight or flight response?

  The endocrine system and the autonomic nervous system (ANS)
• What triggers the sympathetic branch of the ANS?

  A perceived stressful situation
• What hormone is released in response to stress during the fight or flight response?

  Adrenaline
• What are some physiological changes that occur during the fight or flight response?

  Increased heart rate and sweating
• What is the state of arousal in the system during the fight or flight response called?

  The sympathetic state
• What happens to the body once the perceived stressor passes?

  The parasympathetic branch of the ANS returns the body to normal
• What is the role of the parasympathetic branch of the ANS after a stressor?

  It reduces the effects and activity of the sympathetic branch
• Fight or Flight Response


  A natural response to perceived danger or stress, preparing the body to either fight or flee
• How does adrenaline affect your bodily functions - increased heart rate , dilated pupils , increased sweating and breathing ​
• Adrenaline causes constriction of blood vessels in non-essential organs such as skin and digestive tract​
• Adrenaline increases blood flow to muscles so they can be used more efficiently​