1. 29.6 The Endocrine System and Hormones
Set up Cornell Notes on pg. 53
Topic: The Endocrine System and Hormones
Essential Question(s):
1. Create a double bubble that compares the endocrine system and the nervous system.
29.6 The Endocrine System and Hormones
2.1 Atoms, Ions, and Molecules
KEY CONCEPT The endocrine system produces hormones that affect growth, development, and homeostasis.

2. KEY CONCEPT The endocrine system produces hormones that affect growth, development, and homeostasis.

3. The endocrine system is a collection of physically disconnected organs
Control growth, development, and responds to your environment

4. Try and come up with 2 more examples at your table
Ex: body temperature.
When you exercise you start to feel warm. Your endocrine system tells your body to sweat more so you cool down.
Salt level
Blood sugar
Sexual development
Growth
Metabolism
Anything controlled by hormones

5. Works more slowly than the nervous system.
only chemical signals (hormones)
signals move through bloodstream
target cell
hormone
bloodstream
receptor
not a target cell

6. Only cells with certain receptors can receive the signals
Works like a satellite system
Sends signals in all directions, but you need special receivers to get the signals

7. Glands are organs of the endocrine system.
Glands secrete hormones

8. travel through the circulatory system (blood stream)
Hormones are chemical signals or messengers that influence cell’s activities.
produced by glands
travel through the circulatory system (blood stream)
affects cells with matching receptors
target cell
hormone
bloodstream
receptor
not a target cell

9. There are many glands located throughout the body.
Hypothalamus: makes hormones that stimulate other glands to release hormones
Pituitary: controls growth and water in blood
Thyroid: metabolism, energy levels, digestion
Thymus: helps white blood cells fight off infection
Adrenal Glands: breathe faster, increase blood pressure- heart increases strength
Pancreas: Controls blood sugar by adding or removing sugar from the blood
Ovaries and Testes: Cause sexual maturation, influence sexual characteristics
Hormones travel through the bloodstream to cells with matching receptors.

10. 2)How does releasing hormones help glands to communicate with one another?
The glands are not connected. Releasing hormones stimulate other glands to produce and release their hormones.

11. Hormonal imbalances can cause severe illness.
Abnormal hormone levels affect homeostasis.
Hormonal imbalances might be treated with surgery or medicine.
Steroids, a pituitary tumor, or some prescription drugs can make the pituitary overactive and indirectly cause problems.

12. Tallest man EVER recorded!
Robert Wadlow- ( )
8 ft 11.1 in and 485 lbs
Pituitary gland disorder- gave him too much of the growth hormone
Used leg braces to walk, had little feeling in his legs and feet
Died at the age of 22 from an infected ankle blister
Tallest man EVER recorded!

13. Jon Brower Minnoch (1941-1983) Heaviest man ever recorded
Peak weight 1,400 lbs
Suffered from generalized edema – his body retained massive amounts of fluid. Over 900 lbs was due to the fluid.
Was hospitalized. Put on a strict diet and dropped to 475 lbs
Returned a yr later weighing 952 lbs
They discontinued treatment because his edema was incurable

14. Controls thoughts and movement
Quick
Send signals
Slower
Includes CNS and PNS
disconnected
Respond to stimuli
Connected network
Nervous system
Endocrine system
Chemical Signals
Controls thoughts and movement
Maintain homeostasis
Controls growth and development
Electrical Signals