thermoregulation

Question 1

how does the body lose heat through a combination

Answer 1

convection
conduction
radiation
evaporation

Question 2

what does convection mean

Answer 2

process of water or air flowing over the ski n and carrying away body heat

Question 3

conduction

Answer 3

– involves heat moving from or to the body from its surrounding
air

Question 4

radiation

Answer 4

– the transfer of heat from one object to another without contact.

Question 5

evaporation

Answer 5

water vaporisation lost through breathing or sweating transfers heat
from the body to the surrounding environment

Question 6

two responses to excessive hea during

Answer 6

Hyperthermia- occcurs when the bod cannot lose excess heat
Dehydration- excessive water loss

Question 7

how can the body can respond and adapt to excessive
heat

Answer 7

-increased sweat production
-reduced electrolyte concentration due to sweating
-increased blood plasma volume or earlier onset of sweating-a benefit of
heat acclimatisation is an increase in blood plasma volume.
-reduced aerobic and anaerobic performance

Question 8

how the body as several methods for reducing heat loss

Answer 8

-vasoconstriction
-shivering =When the core body temperature drops, a
shivering reflex is triggered to maintain homeostasis
-shivering thermogenesis is the fastest thermogenic process a static body can
produce and involves a series of involuntary muscle contractions producing heat
in response to a cold environment.
-non-shivering thermogenesis