Human skeletal system презентация

Human skeletal system

Locomotion system – тірек-қимыл жүйесі, опорно-двигательная система Locomotion system – тірек-қимыл жүйесі, опорно-двигательная система Support – тірек, поддержка Cartilage – шеміршек, хрящ Compact bone – компактные кости, тығыз сүйек Spongy bone – жұмсақ сүйек, губчатые кости Intracellular space – жасушааралық қуыс, межклеточное пространство Resorption – жұту, поглощение Sternum – төс сүйек, грудная кость Patella of knee – тізе тостағы, чаша колени Ribs – қабырға, ребра

Locomotion system The movement of body is provided by skeletal and muscular systems They together form LOCOMOTION system

Properties of skeletal system Movement Support and giving shape Protection of the internal organs Production of blood cells It stores minerals such as P and Ca

HUMAN SKELETAL SYSTEM 206 bones Skeleton is composed of cartilage and bone developed from connective tissue Bone cells are called osteocytes

Bone tissue COMPACT BONE that is very dense and strong SPONGY BONE that is porous and soft The spaces in spongy bones are filled with a soft tissue called marrow red marrow – produces red blood cells yellow marrow – stores fat and energy

Structure of a bone Osteocytes are connected by cytoplasmic bridges Osteonic canal (Haversian canal) contains blood vessels and nerves Periosteum (outer membrane) that provide production of new bone for growth and repair

Chemistry of a bone

Formation of a bone Bone is formed by osteoblasts and cartilage Carilage catch calcium from blood and are converted to osteocytes In the formation of bone, vitamins A, C, D and Ca and P minerals play important role Osteoclasts are the cells responsible for bone resorption (поглощение), thus they break down bone

Growth of bones longitudinally Bone is formed from cartilage Cartilage changes into bone, this process is called ossification Cartilage cells (chondrocytes) found in epiphysial plate are responsible for increasing of bone in length

Growth of bones in diameter Increasing in diameter is provided by periosteum

Types of bones Long Bones: are found in leg and arms

Types of bones Flat Bones: skull, sternum, patella of knee and ribs

Types of bones Short Bones:Vertebrae, bones of the hand and foot, fingers