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Pill

Theme C - Interaction &  Interdependence

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Direct Hit

Theme A - Unity & Diversity

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Page Facing Up

Theme B - Form & Function

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Keycap Digit One

Theme D - Continuity & Change

🌷 Oestradiol and 💓 Progesterone are the main protagonists of our story today. They&#39;re super essential for reproduction.

<ul>
	<li>Main Missions: It affects the ovary, uterus, and - surprise! - the brain!</li>
	<li>Brainy Affairs: Oestradiol plays a pivotal role in the brain by assisting in the regulation of reproductive hormones. Think of it as the director of a big hormonal orchestra.</li>
</ul>

<ul>
	<li>Hypothalamus: A key region in the brain. It&rsquo;s like the command center for hormones.</li>
	<li>Gonadotropin-releasing hormone (GnRH): A hormone produced by the hypothalamus. Think of GnRH as a bat-signal🦇 in our hormonal story, calling our reproductive heroes to action!</li>
</ul>

These hormones are released by the anterior pituitary when called upon by the mighty GnRH.

<ul>
	<li>🌟 LH (Luteinizing hormone): One of the sex hormones</li>
	<li>🌟 FSH (Follicle-stimulating hormone): Its partner-in-action!</li>
</ul>

<ul>
	<li>Depending on the menstrual cycle stage, oestradiol can act like
	<ul>
		<li>A helpful friend, promoting GnRH release 🤝</li>
		<li>Or a frenemy, inhibiting it 🤷</li>
	</ul>
	</li>
	<li>Especially during ovulation, oestradiol powers up by binding to a receptor inside the hypothalamus cell. It then heads straight to the nucleus (like a boss!). There, it gets down to business as a transcription factor, boosting the production of GnRH mRNA.</li>
</ul>

<ul>
	<li>Produced in the ovary, progesterone is like a warm blanket, ensuring the uterine lining is ready to support a baby. 🍼</li>
	<li>This hormone is like a stealth ninja because it&#39;s a steroid. It can sneak directly through cell membranes of uterine cells.</li>
	<li>Upon entering, it binds to a receptor, and this duo (hormone+receptor) swiftly moves to the nucleus. Here, they mingle with DNA and act as transcription factors, influencing gene expression.</li>
</ul>

Imagine you&#39;re baking (yes, baking! 🎂). Oestradiol and progesterone are like the essential ingredients you can&#39;t do without. GnRH, LH, and FSH are like specific steps in the recipe. The end product? A perfectly maintained system ready for reproduction.

The gene that progesterone activates, the insulin-like growth factor, plays a role in cell growth, ensuring the endometrium lining is as plush and comfy as your favorite sofa! 🛋️

&nbsp;

Recap Time!

<ul>
	<li>Oestradiol and progesterone? BIG players in reproduction.</li>
	<li>Oestradiol can either help or hinder GnRH in the hypothalamus.</li>
	<li>Progesterone = Uterine lining&rsquo;s best friend.</li>
</ul>

There you have it! Hormones can be complex, but they&#39;re hormonally fun to learn about! 🤓 Keep these notes handy, and you&#39;ll be acing your exam in no time. ✨🔬📚

Theme C - Interaction & Interdependence

Unlock Hormonal Secrets Oestradiol & Progesterone!

Table of content

The dynamic duo - oestradiol & progesterone

Oestradiol's grand adventures

Hypothalamus & GnRH - the epic middleman

The tag team - LH & FSH

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