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#SKELETON SKETCH SKIN#
Platelets aid blood clotting when the skin is damaged. White blood cells are important for fighting disease and infection. Red blood cells carry oxygen around the body which is important in the production of energy. Bone marrow is a spongy substance in the cavities of long bones. The skeleton produces red and white blood cells within the bone marrow. When muscles contract, they exert force on bones, and as a result, you move! Produce blood cells Muscles attach to bones via tendons to enable movement. For example, the chest (rib cage) protects internal organs such as the heart and lungs. The human skeleton provides protection for major organs. Without it, we would just be a blob! Protection The skeleton gives the body shape and structure. The functions of the human skeleton are: Shape and structure This is why calcium is essential for growing strong bones. They gradually turn to hard bone over a period of years. All bones start off as cartilage (normally in the womb). Bone formation in the human skeletonīones form by the ossification of cartilage. The arms and legs make up the appendicular skeleton. The axial skeleton consists of the central core of the skull, spine, and ribs. The skeleton divides into two parts known as the axial skeleton and the appendicular skeleton. Human skeleton diagram The Human Skeleton diagram The Ilium, Pubis, and Ischium together make up the pelvic girdle.
The spine has 5 regions Cervical area (top 7 vertebrae), Thoracic (next 12), Lumbar (bottom 5 vertebrae), Sacrum (5 fused or stuck together bones), and Coccyx (the tiny bit at the bottom of the spine). The chest is made up of the Sternum in the middle and Ribs. Handīones of the hand are the Carpals, Metacarpals, and Phalanges. A good way to remember which way round the ulna and radius are is to relate the ‘l’ in ulna to your ‘little finger’. The humerus is the upper arm bone whilst the radius, and ulna makes up the forearm. The shoulder girdle comprises the clavicle (collar bone) and scapula (shoulder blade). The skull is made up of the Cranium, Mandible, and Maxilla Shoulder girdle The main bones of the human skeleton are: The Skull
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