Thermoregulation

Question 1

What is normal temperature?

Answer 1

Between 35.5 and 37.5

Question 2

What is temperature regulated by?

Answer 2

The hypothalamus

Question 3

Heat cannot be destroyed, it gets transferred via 4 possible processes which are..

Answer 3

1. Conduction
2. Convection
3. Radiation
4. Evaporation

Question 4

What should the human core temperature be?

Answer 4

37 degrees

Question 5

What does metabolism do?

Answer 5

Utilises chemical energy

Question 6

What happens at less than 35.5 degrees

Answer 6

Metabolism increases
O2 consumption increases
Thermogenesis increases

Question 7

What happens at 41+ degrees ?

Answer 7

Brain cells degenerate
Organ failure
Local hemorrhages occur

Question 8

What is thermogenesis?

Answer 8

Production of body heat from the metabolic rate

Question 9

What 4 things does effective metabolism require?

Answer 9

1. Adequate brown fat
2. Sufficient blood glucose
3. Large supply of oxygen
4. Functioning nervous system

Question 10

What is hypoxia

Answer 10

A deficiency in oxygen reaching the tissues

Question 11

What is hypoglycemia?

Answer 11

A deficiency in glucose in blood

Question 12

What does vasodilation attempt to do?

Answer 12

Regulate the overall temperature

Question 13

Heat is produced when what 2 hormones are produced?

Answer 13

Adrenaline and noradrenaline

Question 14

When does brown fat develop from?

Answer 14

26 weeks

Question 15

How many times faster do babies lose their heat compared to adults?

Answer 15

4 times faster

Question 16

At birth, the neonatal temperature fall by what?
Core?
Shell?

Answer 16

Core - 0.1 / min

Shell - 0.3 / min

Question 17

Name 5 features of hypothermia

Answer 17

1. Lethargic
2. Bradycardia
3. Sluggish response to stimuli
4. Vomiting
5. Bright pink in color