Download 4.03 Remember Structures of the endocrine system What are the

4.03 Remember the structures of
the ENDOCRINE SYSTEM
1
4.04 Understand the Functions and
Disorders of the
ENDOCRINE SYSTEM
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Activity Day 1
Have students go to media center and get a 6ft
piece of paper. Students will trace someone in
each group on the paper. Using the textbook,
students are to draw the endocrine glands- do
not label these or write the names on these. Do
this later in the unit. Finish vocabulary. Textbook
pgs 324-341
Processing Day 1
Endocrine System Crash Course- Video
https://www.youtube.com/watch?v=WVrlHH14q
3o
The Endocrine Systemhttps://www.youtube.com/watch?v=S_vQZDH9hY&list=PL5A39C879B19478E5
Warm up Day 2
In groups brainstorm what you know about the
endocrine system on the large piece of paper on
table. Share with the class.
4.03 Remember the structures of
the endocrine system
*ENDOCRINE GLANDS
*Their function is to secrete
hormones directly into
bloodstream
Ductless
-only act on target cells
4.03 Remember the structures of the
endocrine system
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Hormonal Control- 2 Types
Negative Feedback
Drop in hormone level
triggers a chain reaction to
increase secretion, for
example
Blood level of hormone falls
Brain gets message and
sends out hormone to
stimulate gland
Gland stimulates more
hormone
When blood levels of
hormone increase, the brain
hormones stop
Nervous Control
In some cases, sympathetic
nervous system causes direct
release of hormone from gland
(for example, when stress
causes the adrenal medulla to
secrete adrenalin)
Hypothalamus
Located in the brain and is •Growth Hormone Releasing
Hormone- Increases the release of
also part of the Nervous
growth hormone from the pituitary.
System.
Function- Controls much •Growth Hormone Inhibiting
of the bodies function and Hormone- Decreases the release of
secretes 5 hormones that GH from the pituitary.
control the Pituitary Gland •Corticotropin- Increases the release
of Adrenocorticotropic Hormone–
ACTH from the pituitary.
•Gonadotropin Releasing HormoneIncreases the release of LH and FSH
by the pituitary.
•Thyrotropin Releasing HormoneIncreases the release of TSH from the
pituitary.
Pineal Gland
Located deep in the brain
between the right and left
hemispheres of the brain.
Function- secretes
Melatonin- Regulates
sleep cycle.
The Pituitary Gland
The Master Gland
Size of a grape
*Located at the base of the brain in the cranial cavity
4.03consists
Remember the structures
of the
and
of 2 lobes
endocrine system
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The Pituitary Gland- Posterior Lobe
Function-secretes two
hormones
Vasopressin – converts to
ADH (antidiuretic hormone)
in the bloodstream, acts on
kidney to concentrate urine
and preserve H2O in the
body
Oxytocin – released during
childbirth causing
contractions of the uteruscan be made as a synthetic
hormone and given to
pregnant women to induce
labor. Also stimulates the
breast for milk production
4.03 Remember the structures of the
endocrine system
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The Pituitary Gland- Anterior Lobe
Function- secretes six hormones
*Growth Hormone - GH (Somatotropin)
responsible for growth and developmentTarget organ- body tissue
*Prolactin – develops breast tissue,
stimulates production of milk after
childbirth- Target organ- breasts
*Thyroid Stimulating Hormone – TSH stimulates Thyroxine in the thyroid
Adrenocorticotropic Hormone– ACTH –
stimulates adrenal cortex
Follicle Stimulating Hormone – FSH stimulates growth of graafian follicle and
production of estrogen in females, sperm
in males- Target organs- Ovaries and
testes.
Lutinezing Hormone – LH – stimulates
ovulation and formation of corpus luteum,
which produces progesterone in femalesTarget organs- testes, male and ovaries ,
females
4.03 Remember the structures of the
endocrine system
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*Butterfly-shaped mass of tissue on
either side of larynx in front of
the trachea
Function- secretes 3 hormones
*Thyroxine (T3)– is controlled by
the secretion of TSH. Controls
the rate of metabolism- if
elevated can cause nervousness
and weight loss. Contain iodine
Triiodothyronine (T4)- Controls
cell metabolism and growth.
Contain iodine
Calcitonin – controls calcium ion
concentration in the body,
prevents hypercalcemia
*The thyroid needs iodine to
function properly. If it does not
get enough it will produce a
goiter. Prevention- Iodized Salt.
Thyroid Gland
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Parathyroid Glands
Four glands, each the size
of a grain of rice- located
in the neck
Attached to posterior
thyroid
Function- secretes one
hormone
*Parathormone
(Parathyroid
Hormone)- which helps
control blood calcium
level, prevents
hypocalcemia
4.03 Remember the structures of the
endocrine system
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Processing
• Take paper from yesterday and label the
endocrine glands you learned about today. Add
which hormones each one secretes
• Identify Endocrine Glands Labeling
Warm up
Endocrine System Videohttp://www.youtube.com/watch?v=S_vQZDH9hY
Thymus Gland
Serves both the endocrine
system and the lymphatic
system
Function- Secretes ThymosinT-lymphocyte production
Located under the sternum
Large during childhood but
atrophy with age.
4.03 Remember the structures of the
endocrine system
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Pancreas
Located behind the stomach in
the abdominal cavity.
*Endocrine and Digestive
Systems
*Function- Endocrine portion of
pancreas involved in
production of Insulin by Islets
of Langerhans.
Secretes 2 hormones
Insulin – Decreases blood
sugar
*Secretes the most insulin after
a meal
The lack of insulin leads to
hyperglycemia which is
diabetes
Glucagon- Raises blood sugar
4.03 Remember the structures of the
endocrine system
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Pancreas
4.03 Remember the structures of the
endocrine system
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Adrenal Gland
There are two adrenal glands.
*One is located on top of each
kidney.
Cortex – outside
Medulla – inside
4.03 Remember the structures of the
endocrine system
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Adrenal Gland
Adrenal Cortex- Function
Function- secretes anti inflammatory
hormones known as corticoids
(natural steroids) and a male sex
hormone. Regulated by the anterior
pituitary.
Mineralcorticoids- Regulate
electrolytes and fluid balance
Glucocorticoids- Regulates blood
sugar
Adrogens- are male sex hormones
4.03 Remember the structures of the
endocrine system
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Adrenal Gland
Adrenal Medulla- Function
Secretes two hormonesepinephrine (adrenalin) and
norepinephrine
*Epinepherine (adrenalin) is
a powerful cardiac stimulant –
“fight or flight” hormones that
prepare the body for an
emergency situation or when
the body is under stress.
Norepinephrine- Opposite of
epinephrine.
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Sex glands
Gonads
Testes (male)
Function- secretes one
hormone
*Testosterone – male
reproductive organs and
secondary sex characteristics
*If a male does not produce
this during puberty, he will not
develop a deep voice, body
hair or increased muscle
mass.
4.03 Remember the structures of the
endocrine system
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Gonads
Sex glands:
*Ovaries (female)- located in
the pelvic cavity
Function- secretes 2 hormones
*Estrogen – development of
female reproductive organs,
secondary sex characteristics*If not produced during the
teenage years, breasts will be
undeveloped and the menstrual
cycle will not begin.
Progesterone – plays a part in the
menstrual cycle and maintaining
pregnancy
4.03 Remember the structures of the
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Processing
• Hormone Functions Crossword
• Who Am I?
• Endocrine System Matching
• Processing I Questions
Processing I
What is the chemical that is secreted by the endocrine glands?
TSH (thyroid stimulating hormone) is secreted by the pituitary and acts on what gland?
Which gland is divided into anterior and posterior lobes?
Which gland is butterfly shaped and is located in the neck?
Which endocrine gland is located in the cranial cavity at the base of the brain?
The pancreas is also an organ in what body system?
Which gland is divided into a cortex and medulla?
What is the structure called that produces hormones?
Which hormone stimulates milk production?
Which hormone causes the “fight or flight” response and what gland secretes this?
Parathormone increases what substance in the blood?
Which endocrine gland is located in the pelvic cavity?
Which gland contains the Islet of Langerhans?
Which hormone if elevated would cause nervousness and weight loss?
When will the pancreas secrete the most insulin?
4.03 Remember Structures of the
endocrine system
What are the structures of the
endocrine system?
4.03 Remember the structures of the
endocrine system
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