Fever

Question 1

what is fever?

Answer 1

Elevation in body temperature

Question 2

how does fever occur?

Answer 2

• Resets thermostat to be higher than normal (controlled by hypothalamus) -> pyrogen
  Chemicals released by WBC that act on hypothalamus

Question 3

what is interlukin-1

Answer 3

Interlukin-1 is produced by activated macrophages, dendritic and epithelial cells

Question 4

is body temperature still being regulated?

Answer 4

still regulated in response to hot or cold, just set higher

Question 5

how do thermoreceptors respond to temperature

Answer 5

detect body temperature then hypothalamus detects it is lower than set point

Question 6

changes that occur during fever

Answer 6

Vasocontrisction in skin and shivering

- Conserve heat and increase heat production to increase body temperature

Question 7

what is a fever break?

Answer 7

body’s thermostat reset too normal

Question 8

what happens after a fever break

Answer 8

Increased body temperature inhibiting growth of bacteria and viruses
Speeds up rate of chemical reactions (body cells repair quicker)
Inhibit viral replication (interferons operate quicker)