Uploaded September 2024 | Updated September 2026, 10 hours ago
In this video, we look at the adrenal glands. First we look at the location and structure of the adrenal glands. We then explore the roles of the hormones secreted by the adrenal glands. This includes glucocorticoids, mineralocorticoids and androgens which are secreted by the adrenal cortex and adrenaline and noradrenaline which are secreted by the adrenal medulla.
Image credits:
Adrenal gland longitudinal section
commons.wikimedia.org/wiki/File:Glands_-_Longitudinal_section_of_adrenal_gland_--_Smart-Servier.png
Laboratoires Servier, CC BY-SA 3.0 creativecommons.org/licenses/by-sa/3.0, via Wikimedia Commons
Adrenal glands GIF
commons.wikimedia.org/wiki/File:HPA-axis_-_animation.gif
Anatomography, CC BY-SA 2.1 JP creativecommons.org/licenses/by-sa/2.1/jp/deed.en, via Wikimedia Commons
In this video, we look at the adrenal glands. First we look at the location and structure of the adrenal glands. We then explore the roles of the hormones secreted by the adrenal glands. This includes glucocorticoids, mineralocorticoids and androgens which are secreted by the adrenal cortex and adrenaline and noradrenaline which are secreted by the adrenal medulla.
Image credits:
Adrenal gland longitudinal section
commons.wikimedia.org/wiki/File:Glands_-_Longitudinal_section_of_adrenal_gland_--_Smart-Servier.png
Laboratoires Servier, CC BY-SA 3.0 creativecommons.org/licenses/by-sa/3.0, via Wikimedia Commons
Adrenal glands GIF
commons.wikimedia.org/wiki/File:HPA-axis_-_animation.gif
Anatomography, CC BY-SA 2.1 JP creativecommons.org/licenses/by-sa/2.1/jp/deed.en, via Wikimedia Commons







![A Level Biology Revision (Year 13) Excretion and Waste Products
In this video, we look at excretion and waste products. First we look at the definition of excretion. We then look at the waste products carbon dioxide, nitrogenous waste products including urea and bile pigments.
Image credits:
Tiger
https://commons.wikimedia.org/wiki/File:Siberischer_tiger_de.jpg
S. Taheri, CC BY-SA 2.5 https://creativecommons.org/licenses/by-sa/2.5, via Wikimedia Commons
Fish
https://commons.wikimedia.org/wiki/File:Vieja_melanura Karlsruhe_Zoo_01.jpg
H. Zell, CC BY-SA 3.0 https://creativecommons.org/licenses/by-sa/3.0, via Wikimedia Commons
Bird
https://commons.wikimedia.org/wiki/File:Female_house_sparrow_at_Kodai.jpg
Deepak Sundar, CC BY-SA 4.0 https://creativecommons.org/licenses/by-sa/4.0, via Wikimedia Commons
Insect
https://commons.wikimedia.org/wiki/File:Sympetrum_sanguineum_qtl13.jpg
Quartl, CC BY-SA 3.0 https://creativecommons.org/licenses/by-sa/3.0, via Wikimedia Commons
Red blood cells
https://commons.wikimedia.org/wiki/File:Blood-rbcs_and_thrombocytes2.jpg
Echinaceapallida, CC BY-SA 4.0 https://creativecommons.org/licenses/by-sa/4.0, via Wikimedia Commons
Liver animation
https://commons.wikimedia.org/wiki/File:Liver_01_animation2.gif
Polygon data is generated by Database Center for Life Science(DBCLS)[2], CC BY-SA 2.1 JP https://creativecommons.org/licenses/by-sa/2.1/jp/deed.en, via Wikimedia Commons A Level Biology Revision (Year 13) Excretion and Waste Products](https://i.ytimg.com/vi/iYtgn7dwGW0/mqdefault.jpg)


