Osmotic Thirst Is Triggered When

Osmotic thirst is triggered when

A) ion channels in stretchy neurons in the preoptic area, anterior hypothalamus, and supraoptic nucleus open.
B) baroreceptors in the hypothalamus sense increased concentrations in the extracellular fluid.
C) the organum vasculosum of the lamina terminalis and the subfornical organ sense a change in the volume of the extracellular fluid.
D) hypovolemia triggers the circumventricular organs via the fenestrated capillaries.