1. Endocrine System

2. Endocrine System Overview
Physically disconnected
Controls growth, development, environmental responses
Glands: Major organs of the endocrine system
makes hormones
Hormones: chemical signals that move through blood
Hormones attach to cell receptor
Cause target cells produce proteins

3. Steroid and Non-Steroid Hormones
Naturally produced by the body
Travel through blood
Attaches to receptor of the target cell
Stimulate protein creation

4. Major Glands Glands create hormones Hypothalamus
Stimulates the pituitary gland to release hormones
Helps controls growth, reproduction, body temp
Pituitary gland
Controls cell growth
Stimulates other glands
Thyroid gland
Regulates metabolism, growth, development
Thymus
Allows WBCs to mature to fight infection

5. Major Glands Adrenal Glands Controls “fight or flight” response
Increases breathing, alertness, blood pressure
Pancreas
Controls glucose level in blood
Gonads: influence sexual development
Testes (males): produces testosterone
Ovaries: produces estrogen, progesterone

6. cold
hormone A
hormone B
hormone C

8. Effects of testosterone

9. hypothalamus
Pituitary gland
Thyroid
thymus
Adrenal glands
pancreas
ovaries
testes

10. Kobe Kuiz What are glands and what do they release?
What do steroid and nonsteroid hormones direct cells to create?
Examine the diagram of the endocrine system on slide #9. Practice answering the 8 different glands.
Which gland….
releases insulin to lower blood sugar levels?
increases your alertness and blood pressure?
helps your white blood cells mature?
is located atop your kidneys?
are found in your brain (two answers)?
is considered your body’s thermostat?