Homeostasis 2 Flashcards
What are hormones ?
Chemical molecules released directly into blood
Where are hormones made ?
Glands (ENDOCRINE)
What hormone is made in the thyroid gland ?
Thyroxine
What hormone is made in the adrenal gland ?
Adrenaline
What hormone is made in the pancreas ?
Insulin
What hormone is made in the ovaries ?
Oestrogen
What hormone is made in the testes ?
Testosterone
What are the differences between hormones and nerves ?
Nerves
The action is faster in nerves
Act for a very short time
Act on a very precise area.
Hormones Slower Action Act for a long time Act in a general way
Why is the pituitary gland referred to the ‘master gland’
It produces many hormones that act on other glands to regulate body conditions .
Which hormones are involved in controlling your blood glucose levels ?
INSULIN
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GLUCAGON
A person drinks some lucozade describe how a healthy persons body responds?
Increase blood glucose conc causes insulin to release from the pancreas. Stimulates cells to absorb glucose from the blood.
Suggest another activity that can remove glucose from the blood
EXERCISE
How does the body respond if slightly too much insulin is injected into the body.
blood glucose concentration goes too low blood glucose concentration detected by pancreas pancreas releases glucagon (glucagon causes) cells to convert to glycogen into glucose glucose released into blood
What is TYPE 1 diabetes ?
The pancreas produces little or no INSULIN
How do people manage TYPE 1 diabetes ?
INSULIN injections most likely at meal times to release the glucose from blood quickly once digested
Limit sugar intake
regular exercise
