Please enable JavaScript.
Coggle requires JavaScript to display documents.
THERMOREGULATION, BLOOD GLUCOSE REGULATION (90MG/100ML) - Coggle Diagram
THERMOREGULATION
STIMULUS
: increased body temp (when exercising)
blood warmer than hypothalamic set point-> activates heat loss centre in
hypothalamus
Sweat
glands activated: secrete perspiration on the skin,
evapourates
which releases heat energy
Body temp decreases and hypothalamus heat-loss centre stops
Skin
blood vessels dilate
, warm blood close to the surface of the skin, heat is lost from the
surface of skin
STIMULUS
: decreased body temp (when not exercising
Blood cooler than hypothalamic set point
Skin blood vessels constrict and blood is diverted away from the surface of the skin to maintain heat
Skeletal muscles activated and rapidly contract and relax to generate heat known as shivering
Body temp increases and hypothalamus heat-promoting centre stops
BLOOD GLUCOSE REGULATION (90MG/100ML)
STIMULUS: blood glucose levels rise
BETA
cells of
pancreas
release
insulin
into blood
body takes up more glucose
Liver takes up glucose and stores it as glycogen
Blood glucose levels deline
STIMULUS: blood glucose levels fall
ALPHA
cells of
pancreas
release
glucagon
Liver breaks down glycogen and releases glucose
blood glucose levels rise