Name Z 1 SHI て בונוסן au SY 2020 2021 Sec Date: L Directions: Read the questions carefully and write the letter of the correct answer. 1. The organ that protects the spinal cord А bone marron B. nbs skull D. spinal column 2. How do you call the muscles that make up the heart? А cardiac Bnbs C skull D spinal column 3. What system is made up of many bones joined to form a structure? A Digestive B. integumentary muscular D. skeletal 4. An organ that protects the lungs and the heart. A bone marrow B. ribs C spinal column D. tendons 5. These are the long bones of our body A legs B. patella Cribs D. tendons 6. What composes the lower extremities of the body? A backbone B compact bone C Knee bone D. pelvic bone 7. What is the main organ of the integumentary System? А. heart Blungs C mouth D skin 8. How does the integumentary system contribute to immunity? A It makes us waterproof It feels when microorganisms are trying to enter It produces immune cells Dit provides a physical barner to most microorganisms 9. Which part of the digestive system cuts the food into smaller pieces to proceed to the next part? A esophagus B intestine C mouth D. stomach 10 Which glands secrete sweat to regulate body temperature? A Apocrine sweat glands C Merocrine glands B. Digestive glands D. Sebaceous glands 11. Which outer layer of the skin prevents excessive water loss from the body? A dermis B. epidermis Chypodermis D. sweat glands 12 What type of blood cell protects your body from infection due to disease causing microorganisms? A plasma B. platelets Cred blood cell D. white blood cell 13. What is the primary function of the respiratory system? A breathing B. circulation digestion D. movement 14. What is a circulatory system? A The body's breathing system C. The body's food processing system 8. The body's system of nerves D. The body's blood-transporting system 15. Why are platelets important to the body? A. They give the blood its red color They surround the germs an weaken them. B. They carry oxygen to all parts of the body D. They make the blood clot to stop continues bleeding 16 Why is the heart important? A ft stops the flow of blood. C.It occupies the chest cavity B. It checks the flow of blood D. It pumps the blood to move throughout the body 17 When does choking happen? A When the epiglottis is pressed down the opening of the larynx to prevent from entering B When the epiglottis is raised and air flows into the larynx and to the lungs, When food accidentally goes into the trachea. D. When food is trapped in the larynx.​