Mind Map by , created over 6 years ago

Biology Mind Map on Biology-Hormones, created by buttsaggington on 06/06/2013.

Created by buttsaggington over 6 years ago
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1 Hormones are substances that help us to control our bodies
1.1 They are the second control system (the first being the nervous system)
1.1.1 Responses controlled by the nervous system are fast and generally over quickly, but responses controlled by hormones are slow and generally last for a long time
2 Hormones are soluble substances made by a number of glands which make up the endocrine system
3 The endocrine gland makes hormones and releases them into the bloodstream
4 Different hormones are made to trigger different organs
5 Most endocrine glands are controlled by the pituitary gland, located at the base of the brain
6 For the body to function properly, it needs the correct amount of each hormone
7 The master gland (pituitary gland) makes the most hormones and they control and coordinate the other hormones
8 Adrenaline prepares the body for action and causes the heart and breathing rate to increase, and directs blood to the muscles
9 Testosterone causes sexual development in males and oestrogen causes sexual development in females

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