Thermoregulatory Factors

A stimulus is a disruption to the internal environment resulting from changes in the external environment, in the case of a tramper climbing Mt Taranaki, changes in the temperature of the external environment can cause their core body temperature to rise or fall. As the tramper climbs up Mt Taranaki and gets higher in altitude the external temperature will likely become much colder and the external conditions will be icy and windy, therefore, the trampers core body temperature will begin to decrease. The cold external environment will cause a disruption to the trampers core body temperature. Components of the thermoregulatory control system, called receptors, detect this disruption and the changes to the trampers internal environment. The receptors,
The control centre receives and processes messages from multiple receptors and uses this information to determine the appropriate response. The hypothalamus is the control centre in the brain responsible for thermoregulation, it process signals from thermoreceptors and then signals multiple effectors to initiate the appropriate response to restore the core body temperature to its set point of 37°C. The trampers hypothalamus will receive input from the thermoreceptors signally that there is a decrease in the external and internal temperature, and the hypothalamus will then activate the effectors to initiate a response. Effectors are components of the regulatory system that act to adjust the body’s internal environment and restore it to the set point. The effectors used in thermoregulation are components of the system that can adjust the body's core temperature back to equilibrium and back to the optimum range. As the tramper climbs Mount Taranaki and the external environmental conditions become increasingly colder, the trampers hypothalamus will send signals to the effectors to help the body generate heat in order to increase the trampers internal body