Presentation on theme: "Function of the skeletal system"— Presentation transcript:
1Function of the skeletal system The function of the skeletal system, Types of bone and planes of movement
2Functions: Provides a framework for the body Bones act as levers and by forming joints allows muscles to pull on them and create joint movements… so we can move in all directions and perform the functions we need on a daily basis.The skeleton gives the body its distinctive shape and is the framework that which to attach muscles and other soft tissue.Allows movement of the body as a whole and its individual partsWithout a skeleton we would be a big bag of….FLUID!!
3What 4 examples can you think of??? Certain bones contain RED bone marrow, the bone marrow produces RED blood cells, WHITE blood cells and PLATELETSProtectionBones will support and protect the vital organs they contain.What 4 examples can you think of???Production of blood cellsThe ‘certain’ bones are: Pelvis, Sternum, Vertebrae, Costals, Cranial bones and Clavicle.
4Fats (triglycerides) are also stored within the YELLOW bone marrow. Storage of minerals and fatsBones themselves are minerals stored within cartilage… acting as a mineral store for Calcium, Magnesium and Phosphorous.Attachment of soft tissueBones provide the surface for attachment of soft tissues, such as Muscles, Ligaments and Tendons.
5Types of Bone Long Bone Flat Bones Femur Humerus Tibia Metacarpals PhalangesFlat bones are strong, flat plates of bone with the main function of providing protection to the bodies vital organs and being a base for muscular attachment.Function of Protection and Stability, with little movementShort BoneHaving a body longer than it is wide and having growth plates at either end (epiphysis)They are approximately wide as they are longScapula (shoulder blade). The Sternum (breast bone), Cranium (skull), Pelvis and Ribs are also classified as flat bones
6Irregular BonesThese are bones that do not fit into any other category due to their unusual shape.The most obvious example: The Patella (knee cap) which sits within the Patella or Quadriceps tendon.Good examples being the Vertebrae, Sacrum and Mandible (lower jaw).Sesamoid BonesSesamoid bones are usually short or irregular bones, imbedded in a tendon.Sesamoid bones are usually present in a tendon where it passes over a joint, acting as protection to the tendon.
7Planes of Movement Anterior – To the front Posterior – To the rear Medial – Towards the midlineLateral – Away from the midlineProximal – Near to the rootDistal – away from the rootSuperior – AboveInferior – BelowVisual view of the anatomical structure
8Task…Continue with the P1 assessment from yesterday, using the same word document!You should also finish off the work that you started in yesterdays lesson… making sure that you look at the rest of the assessment below.• The different types of bone (i.e. long, short, flat, irregular, sesamoid) and identify the major boneswithin the body.• The function of the skeletal system (i.e. support; protection; attachment for skeletal muscle; source ofblood cell production; store of minerals)…If finished all of the above assessment, start to look at the different types of joints within the body (Elbow=Hinge Joint)