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Name ________________________ Date _______________ Grade 6 /___ Lesson 3.4 – How Do Our Bodies Move Breathe & Circulate Blood? Skeletal system Bones, ligaments, cartilage. Ball & socket joint Hinge joint, pivot joint Muscular system Respiratory system Vocabulary trachea bronchi bronchioles alveoli circulatory system Summary Our body consists of different organs and the organs work together as a system. There are different types of body systems such as skeletal, respiratory, muscular, circulatory, digestive and nervous system. SKELETAL SYSTEM – gives shape to your body. The skeletal system consist of bone , cartilage and ligaments. Bones are organs that support and protect the body, store minerals and allow movement. Cartilage cushions the ends of bones and forms flexible parts like your ears and nose. Ligaments connect bone together at joints. The place where two or more bones meet is a joint there are 3 different types of joint – ball and socket joint for circular movement, hinge joint for back and forth movement, pivot joint for side to side movement. MUSCULAR SYSTEM- helps our body to move. Muscles are tissues attached to the bone. Your skeletal muscles work in pairs to move your body. Muscle cells can change their length to help move bones. RESPIRATORY SYSTEM – the organs in the respiratory system bring in oxygen that our body needs and release carbon di oxide our body's waste gas.the parts of the respiratory system include the nose trachea/ windpipe , bronchi, bronchioles and alveoli. Bronchi bronchioles and alveoli are in the lungs When you breathe air enters through the mouth or nose and travels through the trachea. Then it flows through the large tubes called bronchi and the smaller tubes called bronchioles until it reaches the alveoli. There, oxygen enters the blood and carbon di oxide enters the alveoli. The airflows back out through the bronchioles and then through the larger bronchi. Then it passes through the trachea and finally leaves the body through the mouth or nose. CIRCULATORY SYSTEM - is made up of the heart , blood and blood vessels. Heart is the organ that pumps blood through your body )HEDU- FP - 14( م2014/10/28 ) اتريخ اإلصدار1( رقم اإلصدار