David has an ultrasound of his common carotid arteries, which shows that his right common carotid artery is nearly 90 percent blocked. he wonders how the right side of his brain is getting enough blood if this artery is so occluded. what do you tell him?

David can have complete brain irrigation, thanks to the Willis polygon, is an arterial structure, which allows to redistribute blood flow, in case there is a process of ischemia and hypoxia.

If the hypothalamus did not respond to an increase in the body temperature the the body will overheat which can lead to a heat stroke because the hypothalamus releases horomones to decrease your bodys temperature and regulate it. homeostatic imbalance is an inability of the body to maintain homeostasis.