Please enable JavaScript.
Coggle requires JavaScript to display documents.
thermoregulation, Shakana Smedley - Coggle Diagram
thermoregulation
vasoconstriction
goosebumps occur which contract the erector pili muscles, creating a thermal insulating layer to trap heat and slow the rate of heat loss to the external environment.
it also increases the bodies metabolic rate and increases hormones as a response from the hypothalamus such as adrenalin and thyroxine to increase heat production.
vasoconstriction: a response of the body becoming to cold the control center(Hypothalamus) narrows the blood vessels in the skin and reduces the flow of blood to conserve core body temperatures,
shivering
constant contractions uses energy to do so, leading to an increase in the cellular respiration rate, through the respiration the glucose is broken down
a byproduct of that energy is heat not just ATP, creating a negative feedback loop to generate enough heat until the body returns to the "set point"
shivering: which is a rapid and involuntary muscle contraction that generate heat and increase the respiration in muscles cells,
Sweating*
Sweating*, the sweat glands secrete sweat for evaporation, facilitating the release of more heat away from the body, as the environment absorbs the heat energy (facilitated faster in dry and windy conditions)
sweating is a negative feedback loop as the body tries to return to the original state. a behavioral response form this could be to seek shade, drink water or remove clothing layers to cool down.
without this mechanism humans would be unable to prevent overheating leading to enzyme denaturing and heat strokes.
references: Biozone homostasis section, Rose Kidd : :
-
-
-
vasodilation:
vasodilation: a response of becoming to hot causes the skins blood vessels to widen, which increases the the blood flow to the surface off the skin
the excess heat to be absorbed into the external environment to maintain a stable body temperature, a reduced metabolic rate to reduce internal heat production. as well as a function called
Thermoregulation is the process of maintaining a stable internal body temperature(37°C) despite the changes in the external environment and is vital to the human homeostasis functions due to the particular temperature range cellular processes and enzymes can work properly
-