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comparing nerves and hormones &controlling blood glucose & diabetes
comparing nerves and hormones &controlling blood glucose & diabetes
hormones and nerves carry messages in different ways
nerves
2) act for a very short time
3) act on a very precise area
1) very fast reaction
hormones
1) slower action
2) act for a long time
3) act in a more general way
if the response is really quick its probably nervous
some information needs to be passed to effectors really quickly so its no good using hormones to carry the message they are too slow
if a response lasts for a long time its probably hormonal
for example when you get a shock a hormone called adrenaline is released into your body you can tell its a hormonal response because you feel a bit wobbly for a while after wards
insulin and glucagon controls glucose level
3) vigorous exercise removes much more glucose from the blood
4) excess glucose can be stored as glycogen in the liver and in the muscles
2) the normal metabolism of cells removes glucose from the blood
5) the level of glucose in the blood must be kept steady changes are monitored and controlled by the pancreases using the hormones insulin and glucagon is negative feedback cycle
1) eating food containing carbohydrates puts glucose into the blood from th gut
diabetes
type 1 diabetes little or no insulin is made
5) as well as insulin therapy people with type 1 need to think about limiting the intake of food rich in simple carbohydrates like sugars ans taking regular exercise .
4) the amount of insulin that needs to be injected depends on the persons diet and how active they are
3) people with type 1 need insulin therapy this is usually involved several injections of insulin through out the day most likely at meal time makes use that glucose is removed from the blood quickly once the food has been digested
2) this means a persons blood glucose level can rise to a level that can kill them
1) type 1 diabetes is where the pancreases produces little or no insulin
types 2 diabetes insulin resistance
1) type 2 diabetes is where a persons becomes resistant on their own insulin
2) this an also cause a persons blood sugar level to rise to a dangerous level
3) being overweight can increase your chance of developing type 2 as obesity is a major risk factor in the development of the disease
4) tye 2 can be controlled by eating a carbohydrate controlled diet and getting regular exercise.