5 Replies to “Responding to stress | Processing the Environment | MCAT | Khan Academy”

  1. Ok… uhm. I thought blood goes to the arns and the legs because contrary to what you said we can't live without during fight or flight. How are we going to flight with no legs? So you are dispensing somewhat erroneous information. Blood is diverted from the digestive tract because digestion is not important when faced with a stressor. Your welcome.

  2. Smooth muscles of blood vessels that feed your skeletal muscles has beta receptors , Norepinephrine bind to beta receptors cause dilation of these blood vessels (Symp response)

    When you are running from a lion, you need to get blood into your limb to be able to run
    ( your burrito can be digest later ) as long as you stay alive

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