Thermoregulation

Question 1

Why babies more at risk

Answer 1

Increased surface area to body weight ratio

Question 2

Non shivering chemical thermogenesis

Answer 2

Release of norepinephrine from sympathetic nervous system, leads to brown fat metabolism

Question 3

Brown fat

Answer 3

Rich in mitochondria (energy), differentiates between 26-30 weeks
Between scapulae, along spinal column around neck, behind heart and great vessels, by the kidneys

Question 4

Gluconeogenesis

Answer 4

Turns proteins and fats into glucose, happens once brown fat is used up

Question 5

Conduction

Answer 5

Transfer of heat from warm surface to cold surface (2 objects touching)

Question 6

Convection

Answer 6

Transfer of heat to colder air of the environment
Depends on air current velocity
(Drafty room)

Question 7

Evaporation

Answer 7

Number on mode of heat loss for premies in first week
Transfer of heat through water loss
Thin stratum corneum in first week, keratinized by 1 week old in term babies
Wet baby

Question 8

Radiation

Answer 8

Number one mode of heat loss for premies after first week
Transfer of heat between two objects that don’t touch
(Near a cold window)