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Case Studies Essay

600 words - 3 pages

February 28, 2014

Case Study:
Chemical Eric: Dealing With the
Disintegration of Central Control

February 28, 2014

Part 1 Questions:
1. What hormonal problem could be
causing these symptoms?
2. Why would joint damage be associated
with rapid growth and low testosterone
levels?
*Answer these with your partner.

February 28, 2014

What Do We Think? (#1)

February 28, 2014

The Pituitary
• Most tumors occur as a result of a mutation in a
pituitary cell.
• Tumor could turn on genetic signal that makes GH
to keep dividing. This is probably what Eric had since
his GH was high, and the others were low.

February 28, 2014

Pituitary
tumors are
difficult to
treat, because
they are
surrounded by
bone, arteries,
the optic
nerve is in the
way, plus the
brain!

February 28, 2014

Anterior Pituitary: manufactures and
releases a wide variety of hormones!
Ex) GH, endorphins, etc.

Posterior ...view middle of the document...

• FSH stimulates sperm
production.

February 28, 2014

What Do We Think? (#2)

February 28, 2014

Part III Questions
1. Why was he growing facial hair?
2. Why did he need jaw surgery?
*Answer these with your partner.

February 28, 2014

What Do We Think? (#1)

February 28, 2014

• Use of hCG caused the release of hormones to
produce secondary sex characteristics like facial hair.
• High-level vs. Low-Level Hormones- LH and FSH are
high-level hormones that cause the release of other
hormones.

February 28, 2014

What Do We Think? (#2)

February 28, 2014

• Excess GH causes agromegaly, which means that
pieces of the body still capable of growth, grow
more than other pieces.
• Ex) Lower jaw, big feet and hands

February 28, 2014

Part IV Questions
* These may be some higher-level
thinking questions! Read Part I with your
partner, and answer the questions on a
word document.

February 28, 2014

1. Why are his kidneys so active at night?
What do we think?

February 28, 2014

• Something has disrupted the production and release
of ADH.
Normally, it is produced
in the hypothalamus,
then transferred and
released by the posterior
pituitary. His P. pituitary
is no longer functional.
Diabetes insipidus=
frequent urination due
ADH deficiency.
Diabetes mellitus=
insulin defeciencies

February 28, 2014

2. It also turns out that he has
unpredictable shock responses, etc. What
hormone could be involved?
What do we think?

February 28, 2014

• A high-level hormone called ACTH is usually released
from the pituitary, then travels to the adrenal
glands to release steroids mediate stress responses.
• This must not be working properly!

February 28, 2014

3. If the pituitary is so important, and if Eric is not
getting replacements of hormones the pituitary
makes, why isn’t he dead?
What do we think?

February 28, 2014

*Let’s think about the cascade of events in the
endocrine system:

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