level: Thermoregulation
Questions and Answers List
level questions: Thermoregulation
| Question | Answer |
|---|---|
| Define endotherms | Those that maintain a constant body temperature independent of the environment. |
| Define ectotherms | Organisms that are dependent on external sources of body heat. |
| What are the four thermoregulation mechanisms? | convection, radiation, conduction, evaporation |
| What does insulin do in thermoregulation? | Insulin acts on the hypothalamic thermally responsive neurons to induce hyperthermia by promoting an increase in heat production and/or vasoconstriction. |
| Define thermogenesis | The dissipation of energy through the production of heat |
| Define vasomotor control | Regulation of the amount of blood passing to a particular body part or organ by controlling the internal diameter of blood vessels |
| What do thyroid hormones do in thermoregulation? | Thyroid hormones boost animals' basal metabolic rate and represent an important thermoregulatory pathway for mammals that face cold temperatures. |