Stroke, Heart Attacks, and Voodoo Death - The cardiovascular stress-response

5 important questions on Stroke, Heart Attacks, and Voodoo Death - The cardiovascular stress-response

How does your body activate your cardiovascular system?

- Turning down parasympathetic tone --> activating the sympathetic nervous system.
-  Glucocorticoids activating neurons in the brain stem that stimulate sympathetic arousal.
-  Epinephrine and norepinephrine
--> heart starts to beat faster.

How does the force that your heartbeats in increase?

Sympathetic nervous system causes them to constrict. The force in which your blood streams form en to your heart becomes higher.

How does your body distributes blood through the important places in your body when in stressed mode?

Arteries are dilated that lead to your muscles, increasing blood flow and energy delivery. There is a dramatic decrease in blood flow to nonessential parts of your body.
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What are your kidneys doing to keep the cardiovascular system working in moments of stress?

Brain tells the kidneys to stop producing urine, reabsorb the water into the circulatory system. The hormone vasopressin (antidiuretic hormone) and related hormones makes sure this happens.

Why do you wet yourself in very stressful situations?

We can not reabsorb the urine when it's heading to the bladder. So its useless weight when you have to move quickly

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