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Animal Coordination, Control and Homeostais I - Coggle Diagram
Animal Coordination, Control and Homeostais I
Hormones
Hormones are chemical messengers released by endocrine glands which travel in the blood to activate cells in target organs
Hormones are carried in the blood plasma to other parts of the body, but only affect particular cells in particualr organs
Endocrine system
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Endocrine glands
Pituitary glands - Produce many hormones that regulate body conditions, the hormones in produces direct other glands to release hormones that bring change
Thyroud gland - produces thyroxine while regulates things like the rate of metabolism, heart rate and temperature
Pancreas - Produces insulin, which regulates the blood glucose level
Adrenal glands - produce adrenalin, which prepare the body for a fight ot flight repsonse
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Adrenaline
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It increases blood flow to muscles, so cells receive more oxygen and glucose for increase respiration
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Your brain detects fear/ stress and sends nervous impulses to the adrenal glands, which secrete adrenaline
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Thyroxine
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Regulates the basal metabolic rate, speed at which chemical reactions in the body occur while the body is at rest
Negative feedback
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When the levels of certain substances gets too low or high, the body triggers a response to help bring the levels back to a normal range
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