Bones and Muscles

1. Muscle Contraction: Body Systems (watch the movie then play the game.

a. What is troponin?

b. What does tropomyosin do?

c. What is a cross-bridge?

d. Why is it called the sliding filament model?

a. How many bones are in our bodies?

b. What bones are not fully moveable?

c. What is the breastbone called?

d. Our foot and ankle, like your hand and wrist, are made up of both _______________.

e. Ball-and-socket joints are protected by the _______.

3. The human skeleton is divided into two parts, what are they?

Play the game and list 5 of the joints you named.

5. Name any ten of the bones that make up the human skeleton.

a. Pick label and label as many bones as you can, how many did you get right?

7. Interactive: Them bones

a. Where on the body are the tarsals?

b. Where on the body are the phalanges?

8. What are bones made of?

9. In a healthy joint, the ends of bones are encased in smooth __________? Why do we need this substance?

a. Can you catch a cold if you go outside with wet hair?

b. Do humans really use only 10 percent of their brains?

c. Can you harm your eyes by reading in the dark?

11. About how many muscles do we have in our bodies? What are smooth muscles?

12. Why is exercise important for muscles?

a. What does ben need in order to stay healthy?