Why Does My Face Turn Red When I'm Angry?

The video explains how the sympathetic nervous system triggers a fight or flight response when faced with stress, causing physiological changes like increased heart rate and blood flow. This response can lead to visible signs such as flushed skin, which may help communicate emotions socially. The video also discusses the involuntary nature of these reactions and their potential evolutionary significance.

What triggers the sympathetic nervous system to activate a fight or flight response?

• A calm and peaceful environment

• A perceived threat or stressor

• A good night's sleep

• A relaxing vacation

Which of the following is NOT a physiological change that occurs during the fight or flight response?

• Increased blood flow to muscles

• Blood vessels widen

• Heart rate decreases

• Pupils dilate

Why might the face turn red during a fight or flight response?

• Due to the cooling of the skin

• Due to increased blood flow to facial muscles

• Because of a lack of oxygen

• As a result of decreased heart rate

What is the term used to describe the redness of the face during a sympathetic nervous system response?

• Tanning

• Paling

• Flushing

• Blushing

What is a possible evolutionary function of facial flushing?

• To cool down the body

• To communicate emotions to others

• To protect the skin from sunlight

• To increase oxygen intake