Thermoregulation is a critical homeostatic mechanism in mammals that keeps core body temperature within narrow limits.
If core body temperature rises above 40∘C40^\circ \text{C}40∘C (hyperthermia), a positive feedback loop can be initiated, causing body temperature to rise even faster. Explain how positive feedback accelerates the process of hyperthermia.
Mammals have specialized thermoreceptors and control structures to prevent such homeostatic failures. Determine whether each of the following statements about mammalian thermoregulation is True or False: 1. Peripheral temperature receptors in the skin monitor the core body temperature. 2. Central thermoreceptors in the hypothalamus detect the temperature of the blood. 3. The principal coordination centre for thermoregulatory responses is the medulla oblongata. 4. Nerve impulses from thermoreceptors are transmitted to the hypothalamus via sensory neurones.
