1. Do Now: Take out notebook, homework, and pencil
Start a new Do Now page
At top of page write Do Nows for week of 1/22
Pick a gland and describe the hormone it produces and/or what it does for your body

2. Essential Questions What is the main function of the muscular system?
What are the main organs in this system?

3. Glue the notes on page

4. Muscular System Consists of over 640 muscles Main function is to:
Allow movement in the body
Maintain Posture
Stabilize joints
Generates heat
Found all over the body, even in other organs
Serve to either move the body or move substances throughout the body

5. Properties of Muscles
Excitable or irritable- capable of receiving and responding to stimulation by nerves
Contractible- capable of shortening
Extensible- can be stretched without damage
Elasticity- able to return to its resting shape
Adaptability- can change in response to use, gets bigger or smaller

6. Muscle Movement
Voluntary- controlled consciously by a person such as speaking, walking, writing, you choose to do it
Involuntary- controlled by the unconscious part of the brain such as heartbeat, intestine moving waste, breathing, you can not stop it from happening (and survive!!!)

7. Notes break
You have been watching me as I taught the lesson. Think back over the last five minutes and make a list of all of the voluntary AND involuntary movements I have made
Name the movement and label it as which type it is

8. Types of Muscles
Cardiac- forms the wall of the heart and controls heartbeat– involuntary
Smooth- weakest of all muscles, found in organs that perform grinding, churning, or moving - involuntary
Skeletal- connects muscles to the bones and helps move the bones which moves the body - voluntary

9. Systems Working Together
The muscular system work with the nervous and skeletal system in order for voluntary muscle movements to occur.
Without the bones there would not be enough stability to hold up your body
Without the muscles the bones would not be able to move
Without the nerves the muscles would never get the signal from the brain to move

10. Watch video on muscular system

11. Do this activity on page
Think of different movements you make throughout the day. Choose THREE voluntary and THREE involuntary movements you make and explain why they are classified as each
Work on study guide for the Mid Unit test which will be next class