l. Indicate which organ system will be primarily used in the following situation. Write the beginning letter of correct organ system on the blank.

M- muscular system
D- digestive system
R- respiratory system
S- skeletal system
C- circulatory system
N- nervous system
U- urinary
I- immune system.
E- endocrine

1. Prepare for a 5km run and eat lots of carbohydrates like rice to give you more

system

2. You lift your feet and move your legs as fast as you can.

energy.

3. But you have to go to the bathroom because you drank too much water before

the run.

4. Your breathing is getting faster and faster. 5. The heart is pumping fast as you sprint for the final 1km.

6. You enjoy attending the zumba activities.

7. Your body temperature increase because of the virus

8. The class play "pass the message."

9. You can move your arms in a full range of motion.

10. Female tends to have a mood swing during the period.


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