The skeleton is a rigid structure of bones which provides an anchor for the muscles and skin and protects vital organs.
Imagine yourself as a piece of blob - you would have to have a 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 because 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 human body has 206 bones as a adult, when you are born you have 300 bones. Bones are connected to each other by ligaments. Organs are protected by the skeleton. The brain is protected by the skull and the heart, liver and lungs are protected by the rib and sternum. The skeleton serves many functions; provides the shape of the body as well as supporting, protecting and allowing movement, producing blood, and storing minerals.
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.
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.
Bones are made of calcium, mineral salt, cells and living parts of your body. They also contain stringlike material called collagen. 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 bone cells with spaces between them.
The human leg consists of 8 bones, 4 per leg. The leg’s main function in the human is for support of the rest of the body. The leg extends from just below the pelvic girdle to the ankle.
The femur bone
The tibia bone
The fibula bone
The patella bone
Does the skeleton system work with other systems?
The skeleton 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.