To review:
Whether the following statements are true or false:
a. Conduction is energy transfer between the body and the environment via
b. Thermoreceptors send temperature information to centers in the hypothalamus.
c. Heat-loss mechanisms include sweating and vasodilation of the blood vessels in the skin.
d. The body temperature measured on the skin or in the mouth is generally higher than the core body temperature.
Introduction:
Thermoregulation is the regulation of body temperature in order to maintain effective functioning of all the systems or organs, by means of the negative feedback loop.
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Human Anatomy & Physiology
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- It is a warm day and you feel a little chilly. On checking your temperature, you find that your body temperature is 1.5 degrees below normal. Suggest 3 possible reasons for this situation. Describe briefly how your body will react to this dip in temperature.arrow_forwardWhen the environmental temperature is higher than its body temperature, a toucan (a bird with a very large beak) will increase heat loss by... A. Increasing blood flow to the beak to shed heat by radiation and convection B. Moving to a breezy location to take advantage of convective heat loss C. Gular fluttering D. Lowering heat generated via brown adipose tissue E. All of the abovearrow_forwardA group of students are participating in a 24-hour fast to raise money for the foodbank. Fasting refers to refraining from eating for a period of time. Select the answer that describes how the students’ bodies would respond to maintain homeostasis. Select one: a. The beta cells of the islets of Langerhans are producing glucagon to decrease blood glucose levels. b. The alpha cells of the islets of Langerhans are producing insulin to increase blood sugar levels. c. The alpha cells of the islets of Langerhans are producing glucagon to increase blood glucose levels. d. The beta cells of the islets of Langerhans are producing insulin to decrease blood sugar levels.arrow_forward
- Which of the following statements about metabolic heat is true? A. Relative to their body size, animals that maintain body temperature by metabolic heat production have lower metabolic rates than animals that do not use metabolic heat to maintain body temperature B. Metabolic heat is the product of inefficiencies in the biochemistry of life C. Homeotherms rely on metabolic heat to maintain body temperature D. Relative to their body size, larger animals lose more metabolic heat to the environment than smaller animals E. All of the above are truearrow_forwardOutline the events that shows the negative feedback loop that happens when you (choose only one): get a wound, consume too much sugar, get hot by being in a humid place, feel cold, drink too much water, touch a hot surface, get pinched or pricked, or are in a poorly lit room. You are encouraged to do research on the mechanisms that enables the responses for these.arrow_forwardThyroid hormone is the primary hormone that regulates body temperature. It does so by a. stimulating muscle contraction. b. increasing the number of Na+/K+ pumps in neurons. c. vasoconstriction of peripheral blood vessels. d. sweating.arrow_forward
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