Nucleus (PVN)
* Supraoptic nucleus
* Lateral pre-optic area controls drinking
* Hypovolemic Thirst—
* due to low b.v. + b.p.
* triggered by ADH and Ang II
* loss of b.v. leads to drinking H2O and salts to replenish nutrient loss (Gatorade)
* adrenal glands produce aldosterone
* Sodium cravings “Sodium Specific Hunger”
2 ways to monitor b.v.—
* Baroreceptors
* attached to large veins
* detect low vol.…
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