BSNC 3000 - Thermoregulation Exam
Questions & Answers (Grade A+)
Thermoregulation -
correct answer ✅- the process of maintaining a steady internal
body temperature
Scope of thermoregulation -
correct answer ✅Too cold: hypothermic
Optimal: normothermic
Too hot: hyperthermic
Importance of tight control of body temperature -
correct answer ✅- optimal functioning of enzymes and organs
Hypothalamus -
correct answer ✅- brain structure that determines the
thermoregulatory set point
- considered to be the thermostat of the body
Body temperature -
correct answer ✅Heat gained - heat lost
,BSNC 3000 - Thermoregulation Exam
Questions & Answers (Grade A+)
Sources of heat gain -
correct answer ✅- external sources
- cell metabolism
- muscle activity
- ingestion of food
Sources of heat loss -
correct answer ✅- evaporation of sweat
- through the skin
- breathing
Cause of lower body temp in older adult -
correct answer ✅- causes a decrease in body temperature due to a
decrease in metabolism (less muscle mass) and physical activity
- causes a decrease in body temperature because a decrease in
subcutaneous fat (needed for insulation) allows for greater heat
loss through the skin
, BSNC 3000 - Thermoregulation Exam
Questions & Answers (Grade A+)
Stress -
correct answer ✅- increases metabolic activity causing heat gain
and an increase in body temperature
- activates the fight-or-flight response causing vasoconstriction. This
decreases blood flow to the skin and thus heat loss.
Fever -
correct answer ✅- an increase in core body temperature due to
the resetting of the thermoregulatory set point in response to the
release of pyrogens
- e.g., infection, inflammation
Hyperthermia -
correct answer ✅- an increase in core body temperature above
normal that exceeds the body's ability to lose heat
- the thermoregulatory set point is unchanged
- e.g., malignant hyperthermia, PSR
Questions & Answers (Grade A+)
Thermoregulation -
correct answer ✅- the process of maintaining a steady internal
body temperature
Scope of thermoregulation -
correct answer ✅Too cold: hypothermic
Optimal: normothermic
Too hot: hyperthermic
Importance of tight control of body temperature -
correct answer ✅- optimal functioning of enzymes and organs
Hypothalamus -
correct answer ✅- brain structure that determines the
thermoregulatory set point
- considered to be the thermostat of the body
Body temperature -
correct answer ✅Heat gained - heat lost
,BSNC 3000 - Thermoregulation Exam
Questions & Answers (Grade A+)
Sources of heat gain -
correct answer ✅- external sources
- cell metabolism
- muscle activity
- ingestion of food
Sources of heat loss -
correct answer ✅- evaporation of sweat
- through the skin
- breathing
Cause of lower body temp in older adult -
correct answer ✅- causes a decrease in body temperature due to a
decrease in metabolism (less muscle mass) and physical activity
- causes a decrease in body temperature because a decrease in
subcutaneous fat (needed for insulation) allows for greater heat
loss through the skin
, BSNC 3000 - Thermoregulation Exam
Questions & Answers (Grade A+)
Stress -
correct answer ✅- increases metabolic activity causing heat gain
and an increase in body temperature
- activates the fight-or-flight response causing vasoconstriction. This
decreases blood flow to the skin and thus heat loss.
Fever -
correct answer ✅- an increase in core body temperature due to
the resetting of the thermoregulatory set point in response to the
release of pyrogens
- e.g., infection, inflammation
Hyperthermia -
correct answer ✅- an increase in core body temperature above
normal that exceeds the body's ability to lose heat
- the thermoregulatory set point is unchanged
- e.g., malignant hyperthermia, PSR
