Homeostasis
Source of energy to keep the internal temperature.
What is food?
Hard and waterproof layer that contains keratin.
What is epidermis?
Centre of the control mechanism located in the brain that keeps internal temperature constant by coordinating the processes to bring about temperature changes.
What is the hypothalamus?
Organs that carry out the control of glucose concentration.
What are the liver and the pancreas?
Type of diabetes caused by the death of cells that produce insulin, presumably, as the result of the own immune system attacking the pancreas.
What is type I diabetes?
It has to be around 37 C to help enzymes work properly and to avoid excess loss of water.
What is average temperature?
It absorbs the harmful UV rays in sunlight to protect deeper cells.
What is melanin?
Hormone secreted by the pancreas to lower blood glucose concentration.
What is insulin?
Hormone secreted by the pancreas to increase blood glucose concentration.
What is glucagon?
Substance that should be injected to control blood glucose levels.
What is insulin?
By keeping this constant, all the cells will have enough fuel for respiration.
What is glucose control?
Layer containing fibres, collagen fibres and sweat glands.
What is dermis?
Secretion that evaporates to remove heat from the skin, this cooling the body.
What is sweat?
Quick muscle contraction and relaxation to produce heat and warm blood.
What is shivering?
Organ that produces insulin.
What is pancreas?
An animal that can control it's internal temperature constant despite external temperature changes.
What is endothermic?
Layer containing I'll drops to insulate the body against heat loss and to serve as an energy reserve.
What is adipose tissue?
Narrowing or constriction of blood vessels to prevent heat loss.
What is vasoconstriction?
Expansion of blood vessels to reduce heat loss.
What is vasodilation?
Condition where there is a high amount of glucose present in blood that makes the person feel dry mouth, blurred vision and thirst.
What is hyperglycaemia?
An animal that cannot control it's internal temperature constant.
What is ectothermic?
It is formed when the epidermis folds inwards.
What is hair follicle?
Process carried out by the hypothalamus through which nerve impulses are sent to the skin to decrease body temperature.
What is negative feedback?
Insoluble polysaccharide produced in the liver using the remaining glucose after respiration.
What is glycogen?
Low glucose concentration as the result of not eating enough carbohydrates and consequently, no insulin production that leads to tiredness, confusion, irritable behaviour and ultimately, unconsciousness.
What is hypoglycaemia?