In the ear?
hypothalamus
Osmoreceptors
osmoreceptors
When osmolarity increases above the threshold, the ever-alert osmoreceptors recognize this a the cue to stimulate the neurons that secrete antidiuretic hormone. Secretion of antidiuretic hormone is also simulated by decreases in blood pressure and volume, conditions sensed by stretch receptors in the heart and large arteries. Changes in blood pressure and volume are not nearly as sensitive a stimulator as increased osmolarity, but are nonetheless potent in severe conditions. For example, Loss of 15 or 20% of blood volume by hemorrhage results in massive secretion of antidiuretic hormone. Another potent stimulus of antidiuretic hormone is nausea and vomiting, both of which are controlled by regions in the brain with links to the hypothalamus.
Your osmoreceptors regulate your thirst in attempt to keep you properly hydrated.
In the ear?
hypothalamus
Osmoreceptors
Sense water levels.
hypothalamus
osmoreceptors
Osmoreceptors
osmoreceptors
brain
disruption of metabolic processes in the metabolic system
The body normally loses less than 1% of its water at any one time. An increase in the osmotic pressure of ECF (extracellular fluid) due to water loss stimulates osmoreceptors in the thirst center (in hypothalamus) and the hypothalamic activity triggers thirst and the person seeks water.