HORMONES

What do you know about hormones?

• With your table, brainstorm what you know about

hormones and any words that you associate with the word

hormone.

You have 5 minutes.

GO!

I DIDN’T KNOW THAT!

QUIZ

This true/false quiz is to see what you know about

hormones.

It is not for marks.

On your half piece of paper, list the numbers 1-18.

Write T for True or F for False.

1. Hormones can make you grow to be

nine feet tall.

1. Hormones can make you grow to be

nine feet tall.

• True. This condition is called gigantism, which is caused by an over production of growth hormone,

Robert Wadlow,

the tallest man

known to have

lived (2.72

metres or 8 feet

11 inches) with

his father, Harold

Wadlow (1.82

metres or 6 feet

0 inches)

2. Hormones can affect your ability to

taste salty foods.

2. Hormones can affect your ability to

taste salty foods.

• False

3. Hormones can make you very sensitive

to high-pitched sounds

3. Hormones can make you very sensitive

to high-pitched sounds

• False

4. Hormones cause a young man to begin

to grow facial hair.

4. Hormones cause a young man to begin

to grow facial hair.

• True. This is caused by testosterone, a type of sex

hormone.

5. Hormones can help fight stress.

5. Hormones can help fight stress.

• True. There are many hormones involved,

such as cortisol and ephinephrine (also

known as adrenaline).

6. Hormones determine what color eyes

you have.

6. Hormones determine what color eyes

you have.

• False

7. Hormones can cause you to be allergic

to milk.

7. Hormones can cause you to be allergic

to milk.

• False

8. Hormones can make your heart beat

faster when you are scared.

8. Hormones can make your heart beat

faster when you are scared.

• True. The release of epinephrine can trigger the fight or

flight response so you can respond appropriately to

danger.

9. Hormones can soothe you.

9. Hormones can soothe you.

• True. Oxytocin (which we talked about at the beginning of

the year) is very important for this type of response.

10. Hormones can cause your hands to

tremble when you are nervous.

10. Hormones can cause your hands to

tremble when you are nervous.

• True. This reaction is part of the fight or flight response

mentioned earlier.

11. Hormones affect how much energy

you have.

11. Hormones affect how much energy

you have.

• True. Hormones such as thyroid

hormone which helps regulate

metabolism.

12. Hormones affect how fast or slow you

read.

12. Hormones affect how fast or slow you

read.

• False

13. Hormones tell your body how fast it

should grow.

13. Hormones tell your body how fast it

should grow.

• True, such as growth hormone as well as sex hormones.

14. Hormones give you the strength and

energy to fight or run when in a

dangerous situation.

14. Hormones give you the strength and

energy to fight or run when in a

dangerous situation.

• True. This is part of the fight or flight response.

15. Hormones cause your body shape to

change, especially in teenagers.

15. Hormones cause your body shape to

change, especially in teenagers..

• True, by sex hormones, such as testosterone in males,

and estrogen in females.

16. Hormones can make twins become

triplets before they are born.

16. Hormones can make twins become

triplets before they are born.

• False

17. Hormones tell your body how to

swallow.

17. Hormones tell your body how to

swallow.

• False

18. Hormones help control when you

sleep and when you wake.

18. Hormones help control when you

sleep and when you wake.

• True. This is done by hormones

called melatonin, secreted by a

gland in your brain in response

to changes in light.

Objective

• A. describe the principles of hormonal coordination and

control by the endocrine system

• What happens to the body system when sugar is not

properly controlled?

Guiding Question

WHAT ARE HORMONES?

• Hormones are your body's chemical messengers.

• They travel in your bloodstream to tissues or organs.

• They work slowly, over time, and affect many different

processes, including

• Growth and development

• Metabolism - how your body gets energy from the foods you eat

• Sexual function

• Reproduction

• Mood

• Endocrine glands

make hormones.

• The major glands are

the pituitary, pineal,

thymus, thyroid,

adrenal glands, and

pancreas.

• In addition, men

produce hormones

in their testes and

women produce

them in their

ovaries.

Hormones are Powerful

• It takes only a tiny amount to

cause big changes in cells or

even your whole body.

• Insulin is a hormone released

after you eat a meal.

• If you take insulin because you

have diabetes, too much insulin

can cause your blood sugar to

crash, and you can become very

sick.

• That is why too much or too

little of a certain hormone can

be serious.

Hormones are Powerful

• If you need to take hormones for medical reasons,

laboratory tests can measure the hormone levels in your

blood, urine, or saliva.

• It is also why hormone replacements are highly controlled

by your physician.

Types of Hormones

Peptide Hormones

(protein-based)

• Prolactin (produces milk)

• Oxytocin (bonding and

mood)

• Growth hormone (bones,

muscle and liver)

• Insulin & glucagon (sugar

control)

• Leptin (fat production)

Steroid Hormones

(often cholesterol-based)

• Testosterone & estrogen

(sex hormones)

• Cortisol (stress response)

HOW HORMONES WORK

Insulin

Insulin – Type I Diabetes

• This is a genetic disease where the body’s immune

system destroys insulin-producing cells in the pancreas,

resulting in little to no insulin being produced.

Insulin – Type II Diabetes

• Insulin is produced, however, due to insulin resistance,

cells cannot take up glucose. This can be dietary or

genetic in cause.

Guiding Question Recap

• What happens to the body system when sugar is not

properly controlled?

What do you know?