1. Unit 10: Endocrine System

2. Unit 10: Endocrine System

3. Some motivation required
Joke of the Day:
EXERCISE
Some motivation required

4. Unit 10: Endocrine System

5. Fight or Flight Response?
Quick Review of Past Concepts:
Where do we get our Energy?
Foods that we eat!
Food broken down into Glucose (used and stored)
Can cells use Glucose for energy?
Glucose converted into ATP energy or “cellular energy”
What is the process called that converts glucose into ATP energy?
Cellular Respiration or Aerobic Metabolism
ATP

6. Fight or Flight Response
What is the Fight or Flight Response?
“a physiological reaction that occurs in response to a perceived harmful event, attack, or threat to survival”
ATP
Will you Fight? or will you Run?

7. We will take a look at the Endocrine System and how it works first…
We will take a look at the Endocrine System and how it works first…..then we will revisit the “Fight or Flight” response in a short video

8. Unit 10: Endocrine System
Endo: Crin: Endocrinology:
Inside
“Inside secretions”
Secrete
The study of endocrine glands and hormones

9. Endocrine and Nervous Systems Compared

10. Endocrine System Function:
An internal system of glands that secrete hormones

11. “Radio broadcast to a reception tower…”
Endocrine System
Analogy:
“Radio broadcast to a reception tower…”
Gland
“Radio Broadcast”
Cell
“Reception Tower”

12. Endocrine System Glands: “Broadcasters”
Release chemical messages called Hormones into bloodstream

13. Endocrine System Hormones: “The Messages”
Effect the activity or behavior of other parts (target cells) of the body.

14. Endocrine System Receptors: “Reception Towers”
Chemical binding sites on Target Cells

15. Endocrine System Hormones:
How do Hormones affect the body? (a few examples)
Growth and Development
Reproduction
Sexual Characteristics
Energy usage and storage
Stress response

16. Fight or Flight Video

17. Endocrine System: Structure and Function

18. Endocrine System Structures
Pituitary gland
Hypothalamus
Pineal gland
Thymus
Thyroid gland
Parathyroid glands
Adrenal glands (suprarenal)
Pancreas
Testes (gonads)
Ovaries (gonads)

19. Color the Structures Pituitary gland : RED Hypothalamus : ORANGE
Pineal gland : LIGHT BLUE
Thymus : YELLOW
Thyroid gland : BROWN
Parathyroid glands : WHITE
Adrenal glands : BLUE
Pancreas : BLACK
Testes : RED
Ovaries : RED

21. Hypothalamus
1. Located at the base of the brain, Superior to Brainstem
2. Maintains all Homeostasis in body.
3. Not part of the Endocrine System but it controls the release of hormones from it.
4. Part of the Brain that connects the Nervous System to the Endocrine System (Pituitary gland).

22. Pituitary Gland:
1. Located at the base of brain Inferior to Hypothalamus 2. “Pea” sized structure 3. The “Boss” of the Endocrine System. Controls all other glands.
Neurohypophysis: (Posterior Lobe of Pituitary Gland)
“Store House” for hormones that were produced by the Hypothalamus

23. Pineal Gland 1. Located in Deep in center of Brain
2. Maintains Circadian Rhythm (biological clock)
3. Regulates reproductive hormones

24. Adrenal Glands 1. Located on top of the kidneys (suprarenal)
2. “Fight or Flight” response
3. Also produces steroid hormones like Glucocorticoids and Mineralocorticoids

25. Thymus Gland
1. Located Posterior to Lungs 2. Active during puberty then shrinks away.

26. Thyroid Gland 1. Located in throat area surrounding Trachea
2. Controls metabolism

27. Parathyroid Glands 1. Located with the Thyroid in throat area
2. Regulates Calcium levels

28. Pancreas
1. Located Posterior to Stomach 2. Regulates Blood Sugar

29. Testes
1. Located in the pubic region 2. Male Characteristics 3. Testes are Gonads because they produce gametes (sperm)

30. Ovaries 1. Located on each side of lower abdomen
2. Female Characteristics
3. Ovaries are Gonads because they produce gametes (ova)

31. Endocrine System Hormone List
Epinepherine (Adrenaline): Increases heart rate and breathing; Adrenal Glands
Insulin: Lowers blood sugar level; Pancreas
Glucagon: Raises blood sugar level; Pancreas
Melatonin: Biological clock; Pineal Gland
Oxytocin: Contractions during childbirth, Breast feeding, “Cuddling”; Hypothalamus
Testosterone: Male characteristics; Testes
Estrogen: Female characteristics; Ovaries
Progesterone: Maintains pregnancy; Ovaries
Human Growth (HGH): Growth and Development; Pituitary Gland
Serotonin: Mood, Appetite, Sleep, Memory, and Learning; Pineal Gland
Dopamine: Pleasure/Pain, Addiction, Lust, Risk v. Reward, Emotions; Pituitary Gland
Thyroxine: Regulates metabolism; Thyroid
Cortisol: Stress; Adrenal Glands
Endorphins: Pain block; Pituitary Gland
Thymosin: Makes WBC’s lymphocytes; Thymus
*Glucocorticoid: Regulates metabolism; Adrenal Glands
*Mineralocorticoid: Controls mineral homeostasis; Adrenal Glands