RNSG 1430 Thermoregulation Exam with Complete Solutions

RNSG 1430 Thermoregulation Exam with Complete Solutions Thermoregulation defined - Answer-The difference between the amount of heat produced by body processes and the amount lost to external environment. antecedents of thermoregulation (things that need to occur before the concept can take place) - Answer--Hypothalamus functions normally -Chemical thermogenesis -Normal sweat gland function -Normal skeletal muscle function -Sufficient blood flow -Brown fat in the newborn brown fat - Answer-Tissue in neck and between shoulders of some mammals that is specialized for rapid heat production. -vascular fat that is good. it has high metabolism. newborns heat themselves through brown fat chemical thermogenesis - Answer-our body creates heat through chemical means ex; epinephrine release results in body generating heat attricbutes (10;00) normothermia - Answer-36.5 degrees to 37.2 degrees Celsius 97.7 degrees to 98.96 degrees Fahrenheit two types of body temperature - Answer-core temperature and surface temperature Core temperature - Answer-Temperature of deep tissues. Remains constant despite extreme environmental conditions and physical activity Surface (External) temperature - Answer-Varies depending on: -Blood flow to the skin -Amount of heat lost to external environment Body tissues and cells function efficiently with in a narrow range. - Answer--36 - 38 degrees Celsius -96.8 - 100.4 degrees Fahrenheit Body Temperature Regulation occurs through - Answer-Neural and Vascular Control Heat Production Heat Loss Skin Behavioral Control Mechanisms of heat loss - Answer-Sweating Vasodilation (widening of blood vessels) Inhibition of heat production Role of hypothalamus in regulating and maintaining the body's temperature - Answer-- Hypothalamus controls body temp like a thermostat -Mechanisms of heat loss -Mechanisms of heat conservation Mechanisms of heat conservation - Answer--Vasoconstriction (narrowing of blood vessels) -Voluntary muscle contraction -Muscle shivering Hypothalamus controls body temp like a thermostat - Answer--Anterior hypothalamus controls heat loss (AC) -Posterior hypothalamus controls heat production (heater) what is the primary fuel source of metabolism - Answer-food If metabolism increases - Answer-heat is produced. if metabolism decreases - Answer-less heat is produced heat production definition/occurence - Answer--Is a by-product of metabolism -Occurs during rest, voluntary movements, involuntary shivering, and in non-shivering thermogenesis Basal Metabolic Rate - Answer-accounts for heat produced by the body at absolute rest. shivering - Answer-Involuntary response to temperature differences in the body Non-shivering Thermogenesis- - Answer-primarily occurs in neonates