Homeostasis

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Stimuli
Changes in the internal or external environment that can be detected by receptors
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Receptors
Cells that detect stimuli
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Effectors
Areas (usually muscles or glands) that bring about responses in the body.
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Homeostasis
The regulation of the internal conditions of a cell or organisation to maintain optimum conditions for function, in response to internal and external changes.
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Glands
Control the passage of a substance
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Secrete
To release something eg chemicals
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Exocrine
Releases out of the body eg sweat gland
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Endocrine System
Made up of glands that secrete chemicals called hormones directly into the bloodstream
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Glucogen
Raises blood sugar levels
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Insulin
Lowers blood sugar levels
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Diabetes Mellitus
A disorder that affects the bodys ability to regulate blood glucose levels
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Type 2 Diabetes
Where the pancreas doesn't produce enough insulin or the body's cells don't react to insulin.
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Type 1 Diabetes
Disease in which a persons blood glucose concentration may rise to a high level because the pancreas does not produce enough of the hormone insulin or the insulin doesn't function properly.
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Negative Feedback
Works to maintain a steady rate, whenever there is a change in the internal environment, negative feedback works with an opposite response to counteract this.
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Contraceptive Pill
A pill containing sex hormones which are used to prevent contraception.
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Hormone
A chemical substance that regulates activity.
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Sensory Neurones
The neurones that carry information as electrical impulses from the receptors to the CNS
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Motor Neurones
The neurones that carry electrical impulses from the CNS to effectors
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Synapse
The gap between two neurones
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Other cards in this set

Card 2

Front

Receptors

Back

Cells that detect stimuli

Card 3

Front

Effectors

Back

Preview of the front of card 3

Card 4

Front

Homeostasis

Back

Preview of the front of card 4

Card 5

Front

Glands

Back

Preview of the front of card 5
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