PSY333H5 Lecture Notes - Lecture 6: Major Depressive Disorder, Vasodilation, Hypervigilance
Document Summary
The cardiovascular stress response step 2 endothelial cells help to pump blood secrete nitric oxide which helps to secrete blood. On diuretic, makes you pee all the time. Athletes you need water, why: water helps to get oxygen, nutrients to muscles. Why pee your pants if you are really stressed: dead weight, because bladder is uni-directional. The cardiovascular stress response recovery shutting down the stress-response system. Chronic stress and cardio disease can lead to cardiovascular disease over time. Why is blood pressure going up: obesity/lack of exercise. Step 2: vulnerable part of a capillary. As hypertension goes on, those vessels become more resistant. Increases blood pressure even more: become hardened. Vascular resistance don"t open and shut flexibly. Lop-sided part: results in irregular heartbeat, super strong predictor of cardiovascular disease, bifurcation where capillaries meet, as hypertension continues, pits and tears along artery walls. Step 4: crp, pits and tears can happen on the outside of the vessel.
