I. Read the following questions. Choose and encircle the correct letter for the given choices.
1. Which part of the respiratory system where air, water, and food pass through a. larynx b. trachea c. pharynx d. epiglotis
2. What is the main organ of the respiratory system?
a. alveoli b. bronchi c. diaphragm d. lungs 3. These are small pouches or sacs in the lungs where exchange of carbon dioxide and oxygen takes place. a. bronchial tube b. nostrils C. alveoli d. nasal cavity 4. Which part of the circulatory system camies blood throughout the body?
a. blood vessels b. heart c. blood d. veins
5. It is the pumping organ of the circulatory system.
a, heart b.blood c. blood vessels d. veins
6. It is referred to as the river of life. a. blood vessels b. heart C. blood d. capillaries
7. It is considered as the functional unit of the nervous system.
a. brain b. neurons C. muscles d. bones
8. It controls and coordinates the activities of the whole nervous system. a. central nervous system c. nervous system b. sympathetic nervous system d. brain
9. It is a system that controls other parts of the body. a. nervous system c. digestive system b. circulatory system d. respiratory system
10. It is the primary organ of the central nervous system contained within the skull. b. axon c. dendrites d. cell body
a. brain
IL Directions: Guess the concept being described in each item. Unscramble the letters of the highlighted word to come up with the correct answer. Write your answers on the blank
11.I am the gas that is given off during exhalation. ONBCAR EDDIOXI
12.I go through the air sacs and into the blood. XYGONE
13. I am a long tube connecting your mouth to your lungs. RATHCAE
14. I serve as a passageway for both food and air. NXAPHRY
15. I am made of body parts that help you breathe in oxygen and breathe out carbon dioxide. PISERAROTYR METSYS 16. These are the lower chambers of the heart. TRICLESVEN
17. These are the upper chambers of the heart ATMUIR
18. This is what makes the blood red. It carries oxygen and other nutrients in the blood MOGHEBINLO
19. These blood vessels carry blood to the heart VENSI
20. These blood vessels carry blood away from the heart. ARRIESTE​