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Questions and Answers
What is the primary function of adrenaline produced by the adrenal gland?
What is the primary function of adrenaline produced by the adrenal gland?
Which organ produces insulin?
Which organ produces insulin?
Which hormone is involved in regulating metabolism?
Which hormone is involved in regulating metabolism?
What is one of the main differences between the effects of the nervous system and hormones?
What is one of the main differences between the effects of the nervous system and hormones?
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Which of the following hormones is involved in the menstrual cycle?
Which of the following hormones is involved in the menstrual cycle?
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Where is testosterone produced?
Where is testosterone produced?
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What role does the liver play in hormone regulation?
What role does the liver play in hormone regulation?
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What is the 'master gland' that produces many hormones regulating body conditions?
What is the 'master gland' that produces many hormones regulating body conditions?
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Study Notes
Hormones
- Hormones are chemical substances produced by glands, carried in the bloodstream, and alter the activity of specific target organs.
- Example: Adrenaline hormone released by adrenal glands, increasing heart rate.
Characteristics of Hormones
- Effects are slower than the nervous system but last longer.
- Once used, hormones are destroyed by the liver.
Major Glands and Their Hormones
Pituitary Gland (Master Gland)
- Produces many hormones regulating various body conditions.
- Hormones act on other glands, releasing hormones that bring about change.
Thyroid Gland
- Produces Thyroxine hormone.
- Regulates metabolism rate, heart rate, and temperature.
Adrenal Gland
- Produces adrenaline hormone.
- Prepares the body for 'fight or flight' response.
Pancreas
- Produces insulin hormone.
- Regulates blood glucose level.
Ovaries
- Produces oestrogen hormone.
- Involved in the menstrual cycle.
Testes
- Produces testosterone hormone.
- Controls puberty and sperm production in males.
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Description
Learn about the basics of hormones, their production, and functions in the human body. Understand how hormones affect target organs and how they differ from the nervous system.
