Anterior Pituitary Gland...

Are you not amaze of how our body balances everything?

It neutralizes every single thing for us to keep on smiling.

When something gives up, something will step up,

To prevent disease from occurring, for us to have a good living.

Now let us know who does this function,

for us to learn and even acquire some information.

Also for me to have this challenging work done,

so that my teacher will grade this as a job well done. =)

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I am talking about our body's different glands,

but most specifically the Pituitary Gland.

In humans, it consists of two lobes,

the Anterior lobe and the Posterior lobe.

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Anterior Pituitary Lobe, sometimes called the Adenohypophysis,

counterpart of it is the posterior lobe or Neurohypophysis.

Hormones secreted from the anterior lobe are more complex than those in the hypothalamus,

secretion of hormones happen in response to hormone reaching them from the hypothalamus.

These pituitary hormones can be tropic,

meaning their actions for another endocrine glands are specific.

Or it can also be direct effectors,

because they act directly on peripheral tissue.

 

Now let us talk about its hormones.

First the thyrotropin, or the Thyroid Stimulating Hormone.

It is stimulated by the arrival of thyrotropin releasing hormone from the hypothalamus,

and inhibited by the arrival of somatostatin from the hypothalamus.

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But did you know that this hormone may lead to some difficulties?

One major example is the Hormone Defficiencies.

 Production of more T4 can lead to a condition called Graves disease caused by the hyperthyroidism,

or an inadequate levels of T4 that causes hypothyroidism.

Coming next is the Follicle-Stimulating Hormone,

wherein its release is triggered by the gonadotropin-releasing hormone.

It acts on the follicle to stimulate release of estrogens in females,

and acts on spermatogonia stimulating production of sperm in males.

Be ready because Luteinizing Hormone is next,

because  its effect depend on sex.

It stimulates secretion of progesterone in females,

and stimulates male sex hormone, testosterone, in males.

During pregnancy it prepares the breasts for future production of milk,

and after birth it promotes the synthesis of milk.

It is stimulated by TRH and repressed by estrogen and dopamine.

All these characteristics are referring to PROLACTIN.

Height does matter, whether short or tall,

this Human Growth Hormone is responsible for all.

But be mindful of its diseases,

because too much or less of it can cause differences.

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Too much secretion of Growth hormone leads to Acromegaly and Gigantism,

while hyposecretion of this will leads to Dwarfism.

Having just enough of this is the key,

not too tall, not too short, well, just like me. =)

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Lastly, the Adrenocorticotropic  Hormone,

which stimulates cortisol, aldosterone, and testosterone.

Again, too much of this may lead to a certain disease,

hypersecretion of ACTH is a frequent cause of Cushing's Disease.

Too much of everything is unhealthy,

because in reality it will never make you wealthy.

As well as too less of everything,

Because you will never gain anything..=) 

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