ANT 2100 1st Edition Lecture 4 Homeostasis and Metabolism Visual Aid (Figure 1)Figure 1 shows how homeostasis occurs, there is a normal range (demonstrated by the straight line) in which your body should be maintained, yet there are many changes (demonstrated by thecurved line) that go on throughout the body such as being too hot or too cold. The body is constantly self-regulating itself to maintain homeostasis. MEASURE SET POINT MENT T I M EThese notes represent a detailed interpretation of the professor’s lecture. GradeBuddy is best used as a supplement to your own notes, not as a substitute. NORMAL RANGERegulators, Receptors, and Effectors Visual Aid (Figure 2)Figure 2 shows how the body responses to change. The regulator is the homeostatic value or normal range of the body; the receptors detect changes within the body and relay that information to the regulator, the regulator transports that information to the effectors which driveconditions towards the set point (i.e. when you get hot, the temperature in your body rises above the normal range, that change is detected by the receptors, that information is then transported to the regulators where the normal range is maintained, that is then transported to the effectors which carry out the changes to return the body back to its original set point which will cause you to sweat to cool the body down) REGULATORSRECEPTORSEFFECTORSNegative Feedback and Positive Feedback Visual Aid (Figure 3)Swear more NormalRange 98.6 degrees Fahrenheit (NEGATIVE FEEDBACK)(Shiver)Figure 3 shows negative feedback. Negative feedback involves (homeostatic mechanism)the return of the set point (normal range in response to a change in the set point it maintains homeostasis. As you can see it shows as your body temperature rises above 98.6 degrees Fahrenheit (the normal range) you begin to sweat more and as the temperature goes down you begin to shiver. (Figure 4)(POSTIVE FEEBACK) Normal RangeFigure 4 shows positive feedback. Positive feedback does not contribute to homeostasis. The normal set point changes in response to changes in the normal set point. (i.e.