Temperature Flashcards
What is core body temperature?
The temperature of the structures deep within the body.
What is temperature homeostatically controlled as?
37.8 degrees and within narrow limits despite constant changes in the external environment.
Define normothermia.
Normal core body temp which allows for optimum cellular metabolism and function.
How can the body gain heat?
Internal environment- metabolic heat.
External environment- conduction, convection and radiation.
How can the body loss heat?
External environment- conduction, convection, radiation and evaporation.
How is metabolic heat formed?
Oxidation of metabolic fuel derived from food within the body.
What is BMR?
Basal metabolic rate which is the minimum energy required to sustain vital body functions. Leads to a basic level of heat production.
What is the control centre for temperature within the body?
Hypothalamus.
What is the role of the hypothalamus?
Acts as the body’s thermostat where it maintains the body temp at a set point.
What are the 2 centres within the hypothalamus and what do they respond to?
Posterior hypothalamic centre- activated in response to cold stimuli.
Anterior hypothalamic centre- activated in response to warm stimuli.
