GCSE Biology - The Endocrine System

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*** WHAT'S COVERED ***
1. Introduction to the Endocrine System
* Role as a communication system using hormones.
* How hormones travel via the bloodstream to target cells with specific receptors.
2. The Main Glands of the Endocrine System
* Pituitary gland (master gland) and its functions.
* Thyroid gland, thyroxine, metabolism, and negative feedback (TSH).
* Adrenal glands and adrenaline (fight-or-flight).
* Pancreas and insulin (blood glucose regulation).
* Ovaries (oestrogen, egg cells).
* Testes (testosterone, sperm).
3. Comparison between the Endocrine and Nervous Systems
* Differences in signalling (hormones vs electrical impulses).
* Differences in speed and duration of effects.
* Differences in specificity (general vs precise action).

*** CHAPTERS ***
0:00 Introduction
0:31 How the Endocrine System Works
1:29 Pituitary Gland
1:53 Thyroid Gland
2:47 Adrenal Glands
3:10 Pancreas
3:25 Testes & Ovaries
4:08 Endocrine vs Nervous System

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Видео GCSE Biology - The Endocrine System канала Cognito