填空题

Body Systems A body system refers to a group of organs, which are parts of the body that do a special job, such as the heart, lungs and kidneys. Ten major body systems in the human body: 1) the skeletal system, which includes the bones and the (1)______ (1)______ tissues. 2) the muscle system, which plays the role of moving the body, pushing the food through the body and making the blood (2)______ (2)______ 3) the nervous system which is made up of the brain, the spinal (3)______and the nerves. (3)______ 4) the (4)______system which comprises of the stomach and the (4)______ intestines and (5)______food to provide energy for the body. (5)______ 5) the respiratory system which consists of the windpipe and (6)______and takes air into the body. (6)______ 6) the circulatory system which includes the blood, the heart, and all the blood (7)______. (7)______ 7) the (8)______system made up of the kidneys and bladder. (8)______ 8) the lymphatic system. 9) the endocrine system composed of special (9)______which give (9)______ out hormones. 10) the (10)______system consisting of organs involved in making (10)______ new human beings.

【参考答案】

lungs
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