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B9.3 Hormones, Bibliography, AdobeStock_71056506-e1524167131112-400x323,…
B9.3 Hormones
Hormone definition
A chemical substance created by a gland brought by the blood alters the activity of one or more specific target organs.
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Adrenaline hormone
A hormone secreted in ‘fight or flight situations and its effects, limited to increased breathing and pulse rate and widened pupils.
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Role of the hormone adrenaline: 🩸Chemical control of metabolic activity, including increasing the blood glucose concentration and pulse rate.
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Increasing pulse rate and breathing rate so glucose and oxygen can be delivered to muscle cells, and carbon dioxide taken away, from muscles cells more quickly
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New word learned ➕
Neurotransmitters: Endogenous chemicals that transmit signals from a neuron to a target cell across a synapse.
Hormones and diseases
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Laboratory tests can be used to test bodily fluids such as the blood, urine or saliva for hormone abnormalities.
Bibliography
file:///C:/Users/sarai/Downloads/IGCSE-2022-syllabus%20(Material)%20(2).pdf
https://www.news-medical.net/health/What-are-Hormones.aspx
https://www.savemyexams.co.uk/igcse/biology/cie/20/revision-notes/14-coordination--response/14-2-hormones--homeostasis/14-2-1-hormones-in-humans/
https://med.libretexts.org/Bookshelves/Anatomy_and_Physiology/Book%3A_Anatomy_and_Physiology_(Boundless)/15%3A_Endocrine_System/15.1%3A_Overview_of_the_Endocrine_System/15.1B%3A_Comparing_the_Nervous_and_Endocrine_Systems
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Activities that cause adrenaline rush: 🏃
Watching a horror movie, skydiving, cliff jumping, bungee jumping, cage diving with sharks, zip lining, and white water rafting.
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