| Why does the Conditions in our body matter? | -Makes sure the Metabolic Reactions can that keep you Alive keep Going in a stable Way.
-Very dangerous if balance is Broken |
| What are 3 Things the Body needs to keep Constant? | -Blood Sugar Concentration [Amount of Glucose]
Make sure the balance of glucose is not too High or Low
-Water content:
Balancing the Water inside you
-Body Temperature
Balancing how hot you are inside |
| Where is the Body Temperature controlled? | -Hypothalamus [Brain] |
| Why does the Body Temperature matter? | -Enzymes work best at around 37 degrees.
-If the Temperature goes lower, The Speed will be Slower
-If the Temperature goes High, The Enzymes may Denature, which would Dramatically slow the Reaction down |
| How can the Hypothalamus detect the Temperature? What would it do if so? | -Contains Receptors that can pick up the Blood Temperature in Brain
-Gains information from the Skin about External Temperatures
-A response is sent into the Dermis [Deep layer of Skin] if a Change happens |
| What happens when your too Hot? | -The Erector Muscles relax = Hairs lie down
-Sweat [Water + Salt] is made and Released. When this Sweat evaporates, it takes Energy from the Skin, to the Environment
-Blood Vessels Widen [Vasodilation] This allows More Blood near the Surface, so More Energy can be Transferred [Cooling you down] |
| What happens when your too Cold? | -Erector Muscles Contract -- Hairs stand up. This can trap Insulating Layer of Air, warming you up
-Little to None Sweat is made
-Blood vessels Contract [Vasoconstriction] meaning Less blood can flow near the Surface = Less energy Transferred
-Shivering [Done by contraction of Muscles] happens. This needs Respiration to happen which makes Energy to heat the Body |
