Download THE ENDOCRINE SYSTEM

THE ENDOCRINE SYSTEM
What if…You are skateboarding in a neighborhood park. Out of the corner
of your eye you see a LARGE, vicious looking dog lunging at you!
He is growling, barking and showing his teeth.
Suddenly he breaks free from his leash and comes straight toward you.
Your heart begins to pound…your hands get sweaty and your muscles tighten
up.
You grab your skateboard and jump into your parent’s car.
You are safe now but your heart is still pounding.
In this unit we will learn how the endocrine system can help with a quick
response to danger and how it slowly turns you from a child to an adolescent
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to an adult.
Endocrine System
-hormones and the glands
that produce and secrete
them
Endocrine System 5:45
2
GLANDS OF THE ENDOCRINE
SYSTEM:
1.
2.
3.
4.
5.
6.
7.
Pituitary gland
Pineal gland
Hypothalamus
Thyroid and Parathyroids
Pancreas
Adrenal glands
Reproductive organs
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ENDOCRINE SYSTEM VOCAB 1-6:
1. Endocrine System – hormones and the glands that produce and secrete them
2. Gland – group of cells that produces and secretes hormones
3. Hormones – chemical messengers produced and secreted by glands
4. Secrete –
to produce liquid so that it flows
5. Duct gland – a channel through which secretions are carried to specific
locations in the body (tear & sweat glands)
6. Ductless gland (Endocrine Glands) – secrete hormones into the blood stream
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ENDOCRINE SYSTEM VOCAB 7-11:
7. Thyroid Gland – produces hormones that controls how the body
uses & stores fuel
8. Pituitary Gland – master gland of the endocrine system
9. Adrenal glands – located above each kidney; secretes adrenaline
10.Pancreas – part of the digestive system, produces hormones that
regulate glucose
11. Hypothalamus – produces hormones that control the pituitary
gland
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ENDOCRINE SYSTEM VOCAB 12-15:
12. Pineal Gland – influences sleep-wake cycles in our body
13. Metabolism – rate at which cells burn fuel to produce energy
14.Insulin – a hormone produced by the pancreas that regulates
the way the body uses sugar
15.
Adrenaline - a hormone that causes our body to react to a
“fight or flight” event
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HUMAN BODY HAS TWO TYPES OF GLANDS:
1.
duct glands = exocrine glands
(tear, sweat, and salivary glands)
2.
ductless glands = endocrine glands
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Duct Glands vs. Ductless Glands
✓
Endocrine Glands:
secrete (give off)
chemicals called
hormones
✓ different hormones
control various body
processes
8
THYROID GLAND:
• Located in the front part of lower neck
(below the “voice box”)
• Shaped like a bow tie or butterfly
•Secretes a hormone that controls the rate at
which the body burns and uses food
(metabolism)
• Controlled by the pituitary gland
Thyroid & Parathyroid Gland Video
Parathyroids four tiny glands attached to
the thyroid
regulate the level of
calcium in the body 9
PITUITARY GLAND
• Located at the bottom of the brain (pea sized)
• secretes hormones that control other glands
➢such as: growth, water balance, endorphins
(pain sensitivity)
• Called the “master gland”
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ADRENAL GLANDS
• Located on the top of each kidney
• Helps the body’s response to stress
• Produces Adrenaline, which
increases blood pressure & heart
rate when
the body experiences stress
Fight or Flight Video 6:36
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Hypothalamus
• Produces hormones that control the
pituitary gland
Located in the lower central part of the brain
• Part of the endocrine and nervous system
• Controls the body’s temperature, blood
pressure, and emotions
Hypothalamus Video
Thymus
Helps the body’s immune
system to recognize and reject
germs
Located below the Thyroid
glands.
What is the Thymus?
13
PANCREAS:
• Both a duct and ductless gland
• Located behind the stomach
• Secretes a hormone called insulin that regulates
how the body uses and stores sugar (glucose)
• Homeostasis
14
PINEAL GLAND
• Located in the middle of the brain
• Produces “sleep-wake” hormone
Pineal Gland Video
Common Disorders of the
Endocrine System
16
Diabetes
•When the pancreas does not produce enough insulin, a person has a
sickness called diabetes (can be controlled but not cured)
https://www.brainpop.com/health/di
seasesinjuriesandconditions/diabet
es/
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Dysfunctional Thyroid Gland
Goiter
abnormal enlargement of the thyroid glandA
goiter can occur in a gland that is producing
too much hormone (hyperthyroidism), too
little hormone (hypothyroidism), or the
correct amount of hormone (euthyroidism).
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GROWTH HORMONE - Pituitary Gland
disorders
Robert Wadlow
Tallest man in
history!
8’ 11 ¼” tall
died in 1940
Video
Pituitary Gigantism and
Acromegaly
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GROWTH HORMONE
Jyoti Amge
now 20-years-old
Nagpur, India
Under 25 in. tall
The shortest woman of the world
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