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Thermoregulation - hypo and hyperthermi, ISLA SUTHERLAND, REFRENCE TO…
Thermoregulation - hypo and hyperthermi
BODY REACTIONS
FEVER
When a human has a fever it means it is trying to kill of the virus in the body, its a system to destroy the pathegens
In children they should not be prolonged at that temp range, they should be cooled down imediatly
heat exaustgen - causes headaches fatuige
heat stroke - need medical attention for survival
The body fights to get back to normal, when the body reaches higher or lower than the normal tempuratures it starts to protiens/ enzymes.
The metabolic pahway starts to do thier thing
Stimuli - Tempurature rises above 37.5 (hyperthermia)
Receptor - Thermoreceptors/ Nerve cells in Skin and Brain (Hypothalamus).
Thermostat in brain activates cooling systems
Effector - Sweat glands produce sweat that evaporates, to cool the body
Tempurature decreases, thermostat shuts off the cooling systems
Effector - Blood vessles in skin dilate for the heat to escape
Hair/ pilli muscles - stand up to let heat out
The stimuli - temperature drops below 35.8 (Hypothermia)
Receptor - Brain thermostat (hypothalamus) detect the drop in body tempurature, Thermo receptors in skin detect the cold external enviroment and activates warming systems/mechignisms
Effector - Skeletal mussles rapidly contract causing shivering, to generate heat
Tempurature increases, Thermostat shuts off warming mechignisms, blood vessles let go introducing a big heat shot making people take clothes off
Blood vessles contract to minimise heat loss
35.9C lowest and 37.5 highest
Exersise - Body produces large amount of heat from mussle contractions
If heat is not lost quick enough, core temp rises leading to heat stroke
Vasodilation occurs - more heat radiated from skin
ISLA SUTHERLAND
REFRENCE TO BIOZONE