Quiz # 11.

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Presentation transcript:

Quiz # 11

Negative Feedback: Thermoregulation core body temp tb various blood temp sensors in hypothalamus ‘normally’ ts  37c vasoconstrict (save) shiver (generate) etc. (or vice versa) error signal = ts - tb comparator effector thing being controlled sensor set point + - because of -FB, tb cycles around ts in & out from env at equilibrium, gains = losses generate + in = out Quiz # 11: Use the phenomena of ‘the chills’ & ‘the sweats’ to help explain the onset, maintenance and termination of fever as the product of a homeostatic, negative feedback system.