Презентация по теме: "Скелет"
презентация к уроку по английскому языку

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The skeleton is composed of bones. In the adult the skeleton has over 200 bones.

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The bones of the skull consist of cranial and facial parts. There are 26 bones in the skull. Cranial part Facial part

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The bones of the trunk are the spinal column or the spine and the chest (ribs and the breatsbone ). The spine consists of the cervical, thoracic, lumbar and sacral vertebrae and the coccyx. SPINAL COLUMN CHEST CERVICAL THORACIC LUMBAR SACRAL L COCCYX

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The vertebra is a small bone which is formed by the body and the arch. All the vertebrae compose the spinal column or the spine. There are 32 or 34 vertebrae in the spine of the adult. In the spinal column there are seven cervical vertebrae, twelve thoracic vertebrae, five lumbar, five sacral vertebrae and from one to five vertebrae which form the coccyx.

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The chest ( thorax ) is composed of 12 thoracic vertebrae, the breastbone an 12 pairs of ribs. The breastbone is a long bone in the middle of the chest. The basis part of the chest is formed by the ribs. Each rib is composed of a head, neck and body.

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The lower extremity consists of the thigh, leg and foot. It is connected with the trunk by the pelvis. The upper extremity is formed by the arm, forearm and hand. It is connected with the trunk by the shoulder girdle.

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The bones of the trunk are connected together by joints, cartilages and ligaments. The bones consists of organic and inorganic substance.