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EXCRETORY SYSTEM - Coggle Diagram
EXCRETORY SYSTEM
Examples of homeostatic regulation
Thermoregulation - maintaining a constant optimal body temperature
Skin hairs
This air acts like a blanket and reduces heat loss.
When we are warm, the hairs lie flat to let heat escape
Hairs trap air to keep us warm
Hypothalamus
It gets information from sensors in the skin and blood
It tells the body what to do to stay at the right temperature
A part of the brain that controls body temperature
Osmoregulation - maintaining a constant optimal osmotic pressure
Glucose regulation - maintaining a constant optimal blood glucose level
Excretion- removal of nitogenous-waste products of metabolism
Components of a homeostatic control system
Receptor - senses a change in the environment
Effector - receives the signal and adjust accordingly
Control Center - determines how to respond to the change
Homeostatic control mechanism
Negative Feedback
Shut off the original stimulus
Reduce the initial intensity
Positive Feedback
Increase the original stimulus
Make variables farther from its originals value