Download Hypothalamus

Hypothalamus
By: Riley Weber
&
Rachel Bender
Hypothalamus definition:

A neural structure lying below (hypo) the
thalamus; it directs several maintenance
activities (eating, drinking, body
temperature), helps govern the endocrine
system via the pituitary gland, and is linked
to emotion and reward.
Hypothalamus functions:
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Manages blood
pressure and
electrolytes.
Controls body
temperature.
Controls
metabolism.
Regulates sleep.
Governs the
autonomic nervous
system.
Regulates heart rate.
Guides responses back
to stress.
Supervises reproduction.
Links the nervous
system to the
endocrine system.
Monitors blood
chemistry.

https://www.youtube.com/watch?v=PMrPlC
DGUwo
Parts of the brain it works with:

Light & darkness- optic
Hypothalamus
nerve.
controls the
pituitary gland and Toxins leading to
throwing up- unusual
many other glands.
neurons.
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Gets information
from numerous
sources.
Blood pressure &
distension of the
gut- vagus nerve.
Skin temperature–
reticular formation.
Other parts of the limbic
system & the smell
nerves- regulates
eating & sexuality.
Also sends information
through the autonomic
system & pituitary
gland.
Hypothalamus injured.
Wakefulness
Salvation
Digestion
These symptoms
would be increased
or decreased:

Hunger

Thirst

Body temperature
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Sleepiness
Body weight
-If injured it can lead
to depression,
hyperactivity,
disordered sleep,
abnormal
responses to
stress, and alter
body temperature.
Hypothalamus injured
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If your hypothalamus gland stops working,
your pituitary gland can stop working as
well.
Disorders
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Hypothalamus dysfunction- Anorexia, bulimia, tumors,
birth defects, developmental disorders (height & weight)
failure to begin or end puberty, or starting puberty early,
rapid weight gain, low sex hormone levels.
Hypothyroidism- thyroid glands don't produce enough
hormones. Symptoms: depression, muscles aches, &
abnormal fatigue.
Adrenal dysfunction- something goes wrong with either
the hypothalamus or pituitary gland. Symptoms: fatigue,
problems concentrating, & trouble sleeping.
Kallmann's syndrome- genetic & can cause hypothalamus
problems. Symptoms: late puberty, color blindness, &
problems smelling.
Homeostasis instability- hypothalamus gland doesn't work
correctly. Symptoms: emotional instability, body
temperature fluctuations, & changes in blood pressure.
Recent Discoveries
- A protein called leptin is being sent out by
fat cells when we eat to much. The
hypothalamus senses the amount of it in
our bloodstream and acts by decreasing
our apetite.

The hypothalamus can control aging
whenever certain pathways are blocked.
Random Facts

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It is a thin plate of
neural tissue.
It is 3-4 millimeters
thick, which is
.118-.157 inches
thick.

It weighs 4 grams,
note the brain
weighs roughly
1,400 grams.
The hypothalamus is
the part of the body
that makes you
sweat and shiver.
Location
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It is below the
thalamus (hypo)
Found on either
side of the front end
The cerebral
of the third
hemisphere hides
ventricle.
it.
Deep in the middle
It is part of the limbic
of the brain.
system.
Near the middle of
Also in the cerebrum,
the cranial cavity.
which is located in
the forebrain.
Hormones
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Thyrotropinreleasing hormone.
(TRH)
Corticotropinreleasing hormone.
(CRH)
Gonadotropinreleasing hormone.
(GnRH)
Somatostatin.
Growth hormonereleasing hormone.
(GHRH)
Dopamine.
Their effects are
released in the
anterior lobe of the
pituitary.
Citations
- "Hypothalamus Function." Welcome to MetaHealth Weightloss Management Inc. N.p.,
n.d. Web. 17 Sept. 2013.
- "The Limbic System." The Limbic System.
N.p., n.d. Web. 17 Sept. 2013.
- "What Are the Different Hypothalamus
Disorders?" WiseGEEK. N.p., n.d. Web. 17
Sept. 2013.