But when was the last time you heard about the invention of the firebomb? Obviously this is because one of these is a technological marvel, improbably created in an impressively short amount of time.
The hypothalamus' primary function is homeostasis, which is to maintain the body's status quo system-wide. Hypothalamic hormones include thyrotropin-releasing, gonadotropin-releasing, growth hormone-releasing, corticotrophin-releasing, somatostatin, and dopamine hormones.he hypothalamus uses a set-point to regulate the body's systems, including electrolyte and fluid balance, body temperature, blood pressure, and body weight. It receives inputs from the body, then makes the proper changes if anything differentiates from this set-point.
How Fear Works. To produce the fight-or-flight response, the hypothalamus activates two systems: the sympathetic nervous system and the adrenal-cortical system. The sympathetic nervous system uses nerve pathways to initiate reactions in the body, and the adrenal-cortical system uses the bloodstream. The combined effects of these two systems are the fight-or-flight response. When the hypothalamus tells the sympathetic nervous system to kick into gear, the overall effect is that the body speeds up, tenses up and becomes generally very alert. If there's a burglar at the door, you're going to have to take action -- and fast.