Chapter 1 Lesson 2 System Interactions - as253.k12.sd.us
Chapter 1 Lesson 2 System Interactions
Ms. Schreurs 7th Grade Life Science Human Body Systems
How Do You Move?
? Skeletal System (skeleton)= ___________________________ ___________________________
? ______________= attached to the bones of your skeleton and provide the force that moves your bones
? Muscles can contract and relax
** Muscles and Bones work together to help you move**
"Show Me Your Muscles"
Which muscles are contracted, which are relaxed?
Joints
? Joint= ________________________ ______________________________
Try This!
Stand on one leg with the other bent
? Which muscles are you using? Which are contracted, and which are relaxed?
................
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