Animal Form and Function: Hormonal Control

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In this video I go over hormones, which are signalling molecules that are secreted by internal glands and transported through the blood to regulate distant organs. In vertebrates, the hypothalamus as the neural control center that links the nervous system to the endocrine system via the pituitary gland, which secretes hormones controlling growth, metabolism, and reproduction. The famous pineal gland produces melatonin which regulates sleep and the circadian rhythm. The pineal gland also looks like a pine cone, and appears to have deep occult connections as it appears through historical artifacts and art. Interestingly, even the Eye of Horus resembles a cross-section of the human brain, namely near the hypothalamus.

I also go over the ovaries and testicles, which serve both functions in reproduction but also as endocrine glands releasing hormones. Finally, I go over an extensive table on organs that serve secondary endocrine functions and their major hormones they release. science biology hormones animals pinealgland

Timestamps:

- Hormones are signalling molecules that get transported in the blood, secreted by internal glands, and controlled by the hypothalamus in vertebrates : 0:00 - Hypothalamus connects the nervous system to the endocrine system via the pituitary gland: 0:44 - Diagram of the main glands of the endocrine system in humans: 1:42 - Pineal gland produces melatonin, which moderates sleep, and resembles a pine cone: 2:24 - 3D diagram of the ventricular system, which is a set of 4 interconnected cavities in the brain: 5:38 - Depiction of pineal gland or pine cones, and the Egyptian "Eye of Horus" across history: 7:25 - Illustration of the human circadian rhythm or biological clock: 12:33 - Pituitary gland secretes hormones that control growth, blood pressure, energy, sex organs, and metabolism: 15:25 - Adrenaline is involved in respiration, and plays an important role in the fight-or-flight response…

Full video below:

- Summary: - Full video and playlist: - Notes: - MES Science playlist: .

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