The skeleton is a rigid structure of bones which provides an anchor for the muscles ,skin and protects vital organs.
Imagine yourself a piece of blob you would have to have box to keep your head up but thanks to the skeletal system you wouldn’t be a blob you would be a building held up by walls. listen carefully there will be a quiz at the end.
The skull or cranium is a protective cover of the brain ,and provides a structure for the face or head.
The skull consists of 28 bones or vertebrae.
The skull is made of many bones that are closely fitted together.
Information page The skeleton The human body has 206 bones as a adult ,when your born you have 300 bones. You have over 230 moveable and semi-moveable joints in your body. Bones are connected to each other by ligaments. Organs are protected by the skeleton. The brain is protected by skull and the heart, liver and lungs are protected by the rib and sternum.
The spine has 33 vertebrae, the spine is not straight the vertebrae forms an s-shape. there are three main parts of the spine ,they are the cervical, thoracic and the lumbar. In the centre of the spine is the spinal cord.
hands: There are 27 bones and 5 fingers in each hand. Fingers are also called digits. The hand is very flexible with lots of joints. The thumb is the most flexible thanks to the saddle joint. hands
Bones are made of calcium, mineral salt, cells and living parts your body. They are also made of stringlike material called the collagen. Bones are a place for minerals to store. Bones have a red and yellow tube called the marrow. The marrow is a tube that makes red blood cells to replace the destroyed and worn out ones. The marrow also stores fat and sugar. An average of 2.6 million red blood cells are made every second by the marrow. The outer layer is called hard bone, the spongy bone is a honeycomb of bones cells with spaces between them.
The ribs the spine and the sternum combine to make up the ribcage. The sternum forms the front of the rib cage. There are two pairs of floating ribs; floating ribs are ribs that only connect to the backbone. The ribs are thin bones that curve around your chest. The manubrium the top of the sternum.
The skeleton is the main structure; it gives the shape and goodness of the body. With no skeleton, the body and its muscles would be a tissue on the floor. Muscles attach to some bones which allows you to move your arms, legs, etc. with no skeleton muscle could not act. The skeleton also allows tunnels for the circulatory vessels and nerves to move.
The strongest bone in the body is the femur bone. The femur bone is the longest and largest bone in the human body. Made to provide stability and strength. The femur is a solid and dense bone that makes up most of the leg. Your height is roughly four times the femur.