1. 4.03 Remember the structures of the ENDOCRINE SYSTEM

2. 4.04 Understand the Functions and Disorders of the ENDOCRINE SYSTEM2 2

3. 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

4. Processing Day 1
Endocrine System Crash Course- Video 3o
The Endocrine System- S_vQZDH9hY&list=PL5A39C879B19478E5

5. 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.

6. 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

7. 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)

9. Hypothalamus
Growth Hormone Releasing Hormone- Increases the release of growth hormone from the pituitary.
Growth Hormone Inhibiting Hormone- Decreases the release of GH from the pituitary.
Corticotropin- Increases the release of Adrenocorticotropic Hormone– ACTH from the pituitary.
Gonadotropin Releasing Hormone- Increases the release of LH and FSH by the pituitary.
Thyrotropin Releasing Hormone- Increases the release of TSH from the pituitary.
Located in the brain and is also part of the Nervous System.
Function- Controls much of the bodies function and secretes 5 hormones that control the Pituitary Gland

10. Pineal Gland
Located deep in the brain between the right and left hemispheres of the brain.
Function- secretes Melatonin- Regulates sleep cycle.

11. The Pituitary Gland The Master Gland Size of a grape
*Located at the base of the brain in the cranial cavity
and consists of 2 lobes
4.03 Remember the structures of the endocrine system

12. 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 uterus- can be made as a synthetic hormone and given to pregnant women to induce labor. Also stimulates the breast for milk production
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13. The Pituitary Gland- Anterior Lobe
Function- secretes six hormones
*Growth Hormone - GH (Somatotropin) responsible for growth and development- Target 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 females- Target organs- testes, male and ovaries , females
4.03 Remember the structures of the endocrine system

14. Thyroid Gland
*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.

15. 4.03 Remember the structures of the endocrine system
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

16. Processing
Take paper from yesterday and label the endocrine glands you learned about today. Add which hormones each one secretes
Identify Endocrine Glands Labeling

17. Warm up
Endocrine System Video- S_vQZDH9hY

18. 4.03 Remember the structures of the endocrine system
Thymus Gland
Serves both the endocrine system and the lymphatic system
Function- Secretes Thymosin- T-lymphocyte production
Located under the sternum
Large during childhood but atrophy with age.
4.03 Remember the structures of the endocrine system

19. 4.03 Remember the structures of the endocrine system
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

20. 4.03 Remember the structures of the endocrine system
Pancreas
4.03 Remember the structures of the endocrine system 20 20

21. 4.03 Remember the structures of the endocrine system
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

22. 4.03 Remember the structures of the endocrine system
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
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23. 4.03 Remember the structures of the endocrine system
Adrenal Gland
Adrenal Medulla- Function
Secretes two hormones- epinephrine (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. 23
4.03 Remember the structures of the endocrine system

24. 4.03 Remember the structures of the endocrine system
Gonads
Sex glands
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

25. 4.03 Remember the structures of the endocrine system
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 endocrine system

26. Processing Hormone Functions Crossword Who Am I?
Endocrine System Matching
Processing I Questions

27. 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?

28. 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