homeostasis

• what is homeostasis?


  The ability of an organism to maintain a stable internal environment despite external changes.
• Homeostatic mechanisms are controlled by the nervous system, endocrine system or both
• Endocrine control involves slower responses that take minutes or hours (e.g., hormone release from the adrenal gland).
• Nervous control involves faster responses that take seconds or less (e.g., heart rate increases when we exercise)
• what is negative feedback?

  does the opposite to change of whatever change was made to regulate your blood levels