The Endocrine System

1
The Endocrine System

• Our SLOW chemical communication system!

2
Nervous and EndocrineSystems

• Nervous System is like email and the Endocrine is
  like snail mail.
• Feedback system-- systems work together
• brainpituitaryother glandshormonesbrain
• Hormones are like neurotransmitters, just slower

3
Just the facts

• Endocrine Systemsystem of glands that secrete
  hormones that affect many different biological
  processes in our bodies.
• The Endocrine System is controlled in our brain
  by the Hypothalamus!
• The hypothalamus relays messages to the Pituitary
  Glandcalled the Master Gland!

4
(No Transcript)
5
More facts

• The pituitary talks to other glands such as the
  adrenal glands as well as the gonads.
• The adrenal glands produce adrenaline or
  epinephrine as well as noradrenaline or
  norepinephrine.
• These chemicals work together to produce a fight
  or flight response activated by the sympathetic
  nervous system.

6
(No Transcript)
7
A little bit more.

• The endocrine system is also in charge of our
  gonadsovaries and testes.
• Sex hormones such as estrogen and testosterone
  are released from here.
• Research suggests that some sex role differences
  are due to different levels of these hormones in
  the bodies of men and women. What do you think?

8
Survey and Discussion

• 1Strongly Agree
• 2Agree
• 3Neutral
• 4Disagree
• 5Strong Disagree

9
Do hormones affect behavior?

• Men and women are different because of their
  different hormones. Agree or Disagree
• Research suggests that testosterone can make men
  more aggressive and competitive. Estrogen can
  have varying effects on women.

10
(No Transcript)
11
More..

• Hormones control when and if we want to have
  intercourse. Agree or Disagree
• Hormones, such as testosterone, do play a part in
  both men and women regarding desire for sex, but
  humans do not seem controlled by these hormonal
  changes unlike other animals such as the Giant
  Panda.

12
More on hormones and behavior

• Differing levels of hormones are correlated with
  homosexuality. Agree or disagree
• Research suggests that stress hormones have an
  impact on the developing fetus and are correlated
  with homosexuality.
• Research also suggests that homosexual males have
  smaller hypothalamic regions than heterosexual
  males.

13
More

• Different levels of hormones are correlated with
  monogamy. Agree or Disagree
• Research done on vols found that by altering the
  amount of receptors they had for hormones like
  oxytocin (cuddle) and vasopression (jealousy),
  that you could make a permiscious vol monogamous.

14
And

• Hormones are correlated with obesity. Agree or
  Disagree
• Research indicates that obesity may have more to
  do with metabolism levels dictated in a large
  part by the thyroid gland and thyroxin.
• Research also indicates that Americans have
  slower metabolisms which is what helped us
  survive our journeys here. But what happens now
  that we have unlimited food?

15
Wait theres more

• Hormones cause acne. Agree or Disagree
• Some research indicates that even though kids
  around the world are going through the same
  hormonal changes as American teens, they do not
  seem to suffer from acne like American teens do.
  We can possibly conclude that there are other
  variables like diet!

16
More

• Hormones make 13 year olds difficult. Agree or
  Disagree
• Is adolescence really a difficult time because of
  the changing hormones or have we just made it so?
• Research indicates that many of the difficulties
  of the teen years seem to limited to the West, so
  maybe it is all just in our imaginations????

17
And

• It is ethical to take synthetic human growth
  hormone for sports or to be taller. Agree or
  Disagree
• Humans release HGH mostly during deep sleep up to
  around the age of 28 years of age, but after that
  people make take synthetic HGH illegally.

18
How are we altering hormones?

• Research indicates that a variety of products we
  use and consume have effects on hormones such as
  Food, Milk, Make up, Sunscreens, Lotion, BPA
• Researchers wonder if environmental factors are
  to blame for things like infertility, early
  puberty, etc..

19
In conclusion

• Hormones are slow acting, but they have VAST
  effects on our body and our behavior.