BIO SCI 47 Lecture Notes - Lecture 3: Glucocorticoid, Vagus Nerve, Psychophysiology
9 Apr 2018
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Cholesterol is a precursor molecule, builds hormones. First hormone released from hypothalamus is crh (goes to pituitary) Adrenaline is a neurotransmitter, cortisol (made from cholesterol) is a hormone. Adrenals involved in both slow and fast response. Norepinephrine is a neurotransmitter but also a hormone so you have something mobilizing you, but sustains the response. Slower stress response keeps us from crashing. Too little or too much cortisol is bad for you (inverse u curve) Triumph or extreme joy can cause sudden cardiac death. Extreme anger and extreme joy have different effects on reproductive physiology, on growth, most probably on the immune system as well; but with regard to the cardiovascular system, they have fairly similar effects. Some parts don"t care what knocked us out of whack, just how much. Women are still less subject to heart attacks than men. If a woman does get a heart attack, she"d be 10 years older and less likely to bounce back.
