Explain how the eye focuses on something that is near to it.
The ciliary muscles contract which slacken the suspensory muscles. This causes the lens to become fat (more curved) so increases how much light is ben...
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15
What does the thyroid gland do?
Produces thyroxine which is involved in regulating metabolism.
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15
What do the receptors do?
Detect the stimulus or change in environment.
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15
What is the pituitary gland ?
It is the master gland. It produces many hormones that regulate homeostasis e.g ADH, FSH
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15
How can type II diabetes be treated?
It can be controlled by eating a carbohydrate controlled diet and getting regular exercise.
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15
What makes up the central nervous system?
The brain or spinal cord
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15
What is the pupil?
The hole in the centre where light enters
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15
Name some methods by which scientists study the brain.
MRI, Electrical stimulation, Studying patients with damage to their brain.
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15
What is the thermoregulatory centre of the brain?
Near the hypothalamus, monitors the temperature of blood.
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15
What is reaction time?
The time it takes to respond to a stimulus
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15
Name the hormone that is released if blood sugar is too high.
Insulin
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15
What happens after the receptors?
Receptors send messages to the CNS via the sensory neurone.
