55K Explore the human skeletal system and its functions. Discover the different bones of the system, such as the axial bones and appendicular bones, how many bones are in the human body, and the role of bones and joints in movement. Related...
The skull contains the cranium, maxilla and mandible. The bones of the cranium are the upper part of the skull and protect our brains from damage. The maxilla, also known as the upper jaw, assists us with chewing our food, has openings for our nose and forms the lower section of our ...
The adult human body has 206 bones, and more than half of the total amount of bones are found in the hands and feet. Bones continue to grow until the approximate age of twenty and then they regenerate to create new bone to replace old bone. The smallest bone in the body is the stap...
根据第三段横线后“Bones are mostly made of calcium and other minerals.Bone-building cells get these things from the food you eat.(骨头大部分是由钙和其他矿物质组成的。造骨细胞从你吃的食物中获得这些东西。)”,可知本段是讲述要吃含钙和矿物质的食物,A项:不要吃太多垃圾食品;B项:注意你吃的食物;...
四、补全对话(有两项多余) A: What's the matter, Emma? Are you hurt? A. Which leg? B: I slippe d on the stairs an d fell down. 1. D B. But how can we go to the hospital? A:Oh, I hope not. 2. A C. I'm sorry to hear that. B: The left one. D. I'm afrai ...
There are many types of arthritis. Types such as rheumatoid arthritis cause inflammation in the joints. Other types wear away the cartilage between joints, such as osteoarthritis. This makes the bones of the joint rub together when you move the joint. An infection from bacteria, a virus, or ...
Osteomyelitis is a severe bone infection. It can develop in any bone, but often involves the long bones, such as your arm and leg bones, or the bones of the spine. Osteomyelitis is caused by different types of germs, such as bacteria or a fungus. ...
The people who are the happiest with their lives are able to enjoy and hug the present moment. 【2】 Focus on what the day will bring you instead of what happened yesterday or what you’ll be able to change about tomorrow. 【3】 Though your life may not be perfect in the moment,ther...
Often cross legged is actually very bad, long-term cross legged affects the blood circulation, so what kind of sitting posture is healthy and correct? What are the hazards of crossing legs? 1. May cause varicose veins or thromboembolism in ...
matter, Emma? Are you hurt? B: I slippe d on the stairs an d fell down.1 A: Oh, I hope not.2 B: The left one. A:3 B: It hurts right here. A: Ithink you' d better go to see the doctor an d take an X-ray picture to see if thereis anything wrong with the bones....