1. Respiratory and Circulatory Systems Immune System and Diseases
III term topics
Endocrine System
Respiratory and Circulatory Systems
Immune System and Diseases
Skeletal, Muscular and Integumentary Systems
Reproduction and Development

2. Describe how hormones influence the activity of a cell.
Objective
Describe how hormones influence the activity of a cell.

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

4. Hormones influence a cell’s activities by entering the cell or binding to its membrane.
Glands are organs of the endocrine system.

5. Hormones are chemical signals that influence cell’s activities.
produced by glands
travel through the circulatory system
affects cells with matching receptors
target cell
hormone
bloodstream
receptor
not a target cell

6. There are steroid hormones and nonsteroid hormones.
Steroid hormones enter the cell.
Nonsteroid hormones do not enter the cell.
Steroid hormone diffuses through the cell membrane
Steroid hormone binds to a receptor within the cell.
The hormone and receptor enter the nucleus and bind to DNA
Steroid hormone causes DNA to make proteins.
Nonsteroid hormone binds to receptor on the cell membrane.
Receptor stimulates a second messenger with in the cell.
Second messenger starts a series of chemical reactions in the cytoplasm.
Second messenger reactions activate enzymes.
Steroid hormone
Non-steroid hormone
receptor
receptor
second messenger
nucleus
Chemical reactions
DNA
activated enzymes
proteins

7. Steroid vs non-steroid hormones
Activity
Venn diagram
Steroid vs non-steroid hormones

8. Objective
Describe the major endocrine glands and the hormones they produce.

9. Endocrine glands secrete hormones that act throughout the body.
There are many glands located throughout the body.
HYPOTHALAMUS
PITUITARY
THYROID
THYMUS
ADRENAL GLANDS
PANCREAS
FEMALE GONADS :OVARIES
MALE GONADS : TESTES
Hormones travel through the bloodstream to cells with matching receptors.

10. What body processes do each of the main endocrine glands influence?
Activity
Page
What body processes do each of the main endocrine glands influence?
Why is the bloodstream a good means for transporting hormones such as growth hormone and calcitonin?

11. Pituitary: water balance and growth
Thyroid: metabolism, growth and development
Thymus: influences the immune system
Adrenal: influences blood pressure and breathing rate
Pancreas: influences digestion and blood-glucose levels
Gonads: influences sexual development and functions.

12. The hypothalamus interacts with the nervous and endocrine systems.
What system is the hypothalamus part of?
What type of signals does the hypothalamus send?

13. The hypothalamus interacts with the nervous and endocrine systems.
The hypothalamus is a gland found in the brain.
a structure of both the nervous and endocrine systems
produces releasing hormones, sent to pituitary gland

14. The pituitary gland is found below the hypothalamus in the brain.
controls growth and water levels in blood
produces releasing hormones sent throughout the body

15. Releasing hormones stimulate other glands to produce hormones.
allow glands to communicate with one another
are used in temperature regulation

16. 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.

17. • produces which are sent to the
WORD
DETAILS
Gland •
Hormone
• produced by
• travels through
• affects cells with
Hypothalamus
• a structure of
• produces which are sent to the
Pituitary gland
• controls
Releasing hormones
Hormone imbalances

19. Activity
1. Open classzone: INDIVIDUAL WORK
Go to Data Analysis
Click on Smartgrapher
Click on Chapter 29 activity about cortisol levels.
Plot the graph and answer the questions.
Once finished, call me.
2. Formative Assessment pg questions 3-7
In a separate sheet of paper.
Needs to be delivered before the end of the class.