Temperature receptors in the brain (hypothalamus).
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How does the brain act as a processing center?
It receives information from the temperature receptors and sends instructions to trigger the effectors automatically.
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What are some 'effectors' to do with maintaining temperature?
Sweat glands, muscles.
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What happens when body temperature is high?
More sweat produced to cool the body when evaporates. Vasodilation (blood vessels supplying capillaries of the skin dilate) causing more blood flow through skin capillaries which increase heat loss.
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What happens when the body temperature is low?
Muscles rapidly contract (shivering) which transfers some energy to the surrounding tissue. Vasoconstriction (capillaries near skin contract causing less blood flow and less heat lost)
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Why do some effectors work antagonistically?
To allow a more sensitive and controlled response.
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What are the two types of diabetes?
Type 1 - Late-onset diabetes & Type 2 - due to poor diet and obesity.
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What are the differences in the two types of diabetes?
Type 1 arises when the pancreas stops producing enough of the hormone, insulin. Type 2 develops when the body no longer responds to its own insulin or does not make enough.
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How can you control Type 1 diabetes?
Insulin injections
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How can you control Type 2 diabetes?
Diet and exercise
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How can your diet help you to maintain a constant blood sugar level?
By having a diet high in fibre and complex carbohydrates.
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What can an unhealthy lifestyle lead to?
Obesity, heart disease, diabetes and some cancers.
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Other cards in this set
Card 2
Front
How do you detect external temperatures?
Back
Temperature receptors in the skin.
Card 3
Front
How do you detect the temperature of the blood?
Back
Card 4
Front
How does the brain act as a processing center?
Back
Card 5
Front
What are some 'effectors' to do with maintaining temperature?
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