Chapter Overview
This chapter explores the endocrine system and how chemical messengers (hormones) regulate various physiological processes. It covers the structure and function of endocrine glands, the hormones they produce, their effects on the body, and the concept of feedback mechanisms in hormonal control.
Important Keywords
- Hormone: A chemical messenger secreted by endocrine glands that regulates physiological activities.
- Endocrine Gland: A ductless gland that releases hormones directly into the bloodstream.
- Hypothalamus: A part of the brain that links the nervous system to the endocrine system via the pituitary gland.
- Pituitary Gland: The master gland that controls other endocrine glands.
- Feedback Mechanism: A system that regulates the level of hormones through positive or negative feedback.
- Insulin: A hormone produced by the pancreas that lowers blood glucose levels.
- Thyroxine: A hormone secreted by the thyroid gland that regulates metabolism.
- Adrenaline: A hormone secreted by adrenal glands that prepares the body for stress ('fight or flight' response).
Detailed Notes
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