Individual can react to outside this scope may or may

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: t return to homeostasis. Pathology or even death can occur. acute chronic Outside the reactive scope…severe challenges can overcome homeostatic mechanisms 7 3/16/2012 Outside the reactive scope… Homeostatic overload = above the reactive scope limit Homeostatic overload reactive scope Physiological variable Physiological variable Homeostatic overload Homeostatic failure f ailure reactive scope Homeostatic failure f ailure Time (1 day) Time (1 year) Homeostatic failure = below the reactive scope limit Also, consider that what constitutes overload, for example, may differ from a daily to yearly period both/either can lead to pathology/death Stresses accumulate…and may go beyond your reactive scope (Example 1) alcohol + alcohol cold exposure + + reactive scope Physiological variable Physiological variable + Homeostatic overload Homeostatic overload Homeostatic failure + cold exposure+ cold water reactive scope Homeostatic failure Time (1 day) Time (1 day) possible death from hypothermia 8 3/16/2012 Stresses accumulate… (Example 2) high caffeine + very hot day high caffeine + very hot day + exercise + + + heat stroke Homeostatic overload reactive scope hyperthermia? Physiological variable Physiolo...
View Full Document

Ask a homework question - tutors are online