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Keycap Digit One

Theme D - Continuity & Change

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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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Pill

Theme C - Interaction &  Interdependence

Hey, Biology Rockstars!🎸 Ever wondered how your baby cousin came into the world? Spoiler: It wasn&#39;t delivered by a stork. Let&#39;s dive into the rollercoaster of hormones that turn a fertilized egg into a crying baby!

<ul>
	<li>Placenta - Your mom&#39;s internal baby-support system!</li>
	<li>Oestradiol and Progesterone - The hormonal VIPs.</li>
	<li>Corpus Luteum - An early pregnancy VIP, but not for long.</li>
	<li>Oxytocin - The &quot;let&#39;s get this baby out&quot; hormone!</li>
	<li>Myometrium - The muscular wall of the uterus, basically the bouncer at Club Uterus.</li>
	<li>Cervix - The door that baby has to pass through to enter the world.</li>
</ul>

What Happens

By the 9th week of pregnancy, the placenta secretes oestradiol and progesterone in significant amounts.

&nbsp;

Real-World Example

Think of the placenta like a backup generator. Until week 9, the corpus luteum handles the job, but then the placenta takes over. If the handoff messes up, there&rsquo;s a risk of miscarriage. 🚨

What Happens

Progesterone keeps the uterus relaxed by

<ul>
	<li>Inhibiting oxytocin secretion.</li>
	<li>Preventing myometrium from contracting.</li>
</ul>

Real-World Example

Progesterone is like a security guard keeping fans away from a celebrity (the baby). It makes sure no one&#39;s disturbing the VIP until it&rsquo;s showtime!

What Happens

Near the end of pregnancy, the baby sends a signal, and the placenta stops secreting progesterone. Now oxytocin kicks in, initiating uterine contractions.

&nbsp;

Real-World Example

Imagine a director yelling, &quot;Action!&quot; Once the placenta gets the cue, it allows oxytocin to set the stage for childbirth.

What Happens

The myometrium contracts ➡️ triggers stretch receptors ➡️ signals pituitary gland ➡️ releases more oxytocin ➡️ causes stronger and more frequent contractions.

&nbsp;

Real-World Example

It&rsquo;s like an Instagram algorithm. The more you engage with a post (more oxytocin), the more it appears on your feed (stronger contractions).

What Happens

<ul>
	<li>Cervix dilates - Aka, the door opens.</li>
	<li>Amniotic sac bursts - Water slide activated! 🌊</li>
	<li>Uterine contractions - Baby goes down the slide.</li>
	<li>Baby breathes - Welcome to Earth, little one!</li>
</ul>

Real-World Example

Think of it as a SpaceX launch. All systems have to go &quot;Go&quot; before liftoff. When all conditions are met, it&#39;s a successful launch!

&nbsp;

And there you have it, folks! From being a tiny secret inside your mom to making a grand, crying entrance&mdash; hormones direct the whole nine-month saga of bringing a new life into the world! 🍼🎉

Theme D - Continuity & Change

Understanding Hormonal Control in Pregnancy

Table of content

Key Players in the Game 🏀

Placenta Takes Charge 🌟

Progesterone - The "Chill Pill" 🍹

Unlock the Full Content!

Theme D - Continuity & Change

Understanding Hormonal Control in Pregnancy

Table of content

Key Players in the Game 🏀

Placenta Takes Charge 🌟

Progesterone - The "Chill Pill" 🍹

Unlock the Full Content!