I. Choose the letter of the best answer and write it on a separate paper.
1. All parts of the body are run by the nerves. When the skin irritates the neuron cells transmit
the message through the peripheral nervous system to the spinal cord and the brain. The brain
sorts the information and choose how to response. It sends information to the muscles for an
action. Which of the following pass on messages from an organ to another?
C. Spinal Cord D. Peripheral Nervous System
A. Brain
B. Neuron
2. Which of these distributes nutrients to the different body cells?
A. blood B. blood vessel C. heart D. small intestine
3. What conscious part of the brain enables us to think, store memories and do intelligent
interpretations.
A. cerebellum B. medulla oblongata C. cerebrum D. Spinal cord
4. Which of these is the most important function of the nerves?
A. They are connected to the brain.
B. They carry messages to all the parts of the brain.
C. They are connected to the spinal cord.
D. They carry messages to the brain.
5. In which part of the respiratory system does exchange of oxygen and carbon dioxide take
place? A. nasal cavity B. pharynx C. lungs D. trachea
6. Which joint can make your bones move back and forth.
A. ball-and-socket joint B. hinge joint C. pivot joint
D. gliding joint
7. Which body organ is protected by the spinal column?
A. brain B. stomach C. sphincter muscle
D. spinal cord
8. Why are the cilia and the mucus membrane important in the respiratory system?
A. They make the respiration process faster.
B. They push the air into the lungs.
C. They cleanse and warm the air before it reaches the lungs.
D. They enable the blood to carry oxygen.
9. Which of the following is an example of a muscle pair to work together?
A. facial muscles and biceps
B. facial muscles and triceps
C. quadriceps and biceps
D. biceps and triceps
10. As blood passes through the lungs, oxygen is being picked up by.
A. platelet B. WBC
C. RBC
D. hemoglobin

pa sagot naman thx po sa sasagot ng matino