Direction: Encircle the letter of the correct answer.
1. What organ that protects the lungs and the heart?
A. bone marrow B. ribs C. spinal column D. tendons
2. What muscles that make up the heart? A. cardiac B. ribs C. skull D. spinal column
3. What is the organ that protect the spinal cord?
A. bone marrow B. ribs C. skull D. spinal column
4. What do you call the muscles which have complete control and responsible for all kinds of body movement?
A. contracting B. involuntary C. relaxing D. voluntary
5. What system that is made up of many bones joined to form a structure?
A. Digestive B. integumentary C. muscular D. skeletal
6. How do our muscles work?
A.by pulling B. by smelling C. by seeing D. by touching
7. What do you call the long bones of our body?
A. legs B. patella C. ribs D. tendons
8. What composes the lower extremities of the body?
A. backbone B. compact bone C. Knee bone D. pelvic bone
9. Which of the following bones protect the brain?
A. backbone B. hipbones C. ribs D. skull
10. Which of the following organs has voluntary muscles?
A. arms B. esophagus C. heart D. stomach
11. What is digestive system?
A. The body's system of nerves
B. The body's breathing system
C. The body's food-processing system
D. The body's blood transporting system
12. Which of the following is not strictly a component of the integumentary system? A. dermis B. epidermis C.hypodermis D. sudoriferous gland
13. What is the main organ of the Integumentary System? A heart B. lungs C. mouth D. skin