《医药学基础》课程教学课件（PPT讲稿）Locomotor System

Locomotor System College of Life Sciences Yuting Cui

Locomotor System College of Life Sciences Yuting Cui

Introduction Bone-Lever Skeleton Synostosis-The branching Composition point of sport -Skeletal Muscle-The Dynamic of Sport Function:Support weight,maintain body shape,protect internal organs

Introduction Bone-Lever Composition Synostosis-The branching point of sport Skeletal Muscle-The Dynamic of Sport Skeleton Function: Support weight, maintain body shape, protect internal organs

os frontale 忑n赢 Osteology 5nu青 惠con高e nn vrteoc Bones in adult are 206 in 5nei心5 lumbles number,about 20%of body weight. &atacaxp Functions:It possesses the ability of reconstruction, repairing and regeneration. In fact,living bones are 整oa6开 plastic tissues with organic and inorganic components. 。 8a

Osteology Bones in adult are 206 in number, about 20% of body weight. Functions: It possesses the ability of reconstruction, repairing and regeneration. In fact, living bones are plastic tissues with organic and inorganic components

Distribution of Bone in the whole Body bones of cerebral cranium (8) Cranium bones of facial cranium (15 (29) auditory ossicle (6) backbone 26 Bone〈 Bones of Trunk sternum (1) （51) (rib(24) Appendicular Skeleton bones of upper limb (64 (126) bones of lower limb (62

Distribution of Bone in the whole Body Cranium (29) Bones of Trunk （51） backbone（26） bones of upper limb（64） sternum（1） auditory ossicle（6） rib（24） bones of lower limb（62） Appendicular Skeleton （126） bones of cerebral cranium（8） bones of facial cranium（15） Bone

The Shape and Classification of Bones Bones are different in shape because of the disparity of their functions. According to their shape,four kinds of bones are classified. Long Bones Short Bones 短骨 长骨 Flat Bones 不规则骨 Irregular Bones 扁骨

The Shape and Classification of Bones Bones are different in shape because of the disparity of their functions. According to their shape, four kinds of bones are classified. Short Bones Long Bones Flat Bones Irregular Bones

The Structure and Function of Bones Provide nutrition for bone,make bone grow Periosteum and thicken continuously,promote bone healing and regeneration. Resisting stresses and Living Compact Bone Bony bending Bones Substance Cancellous Bone The structure is loose, honeycomb and light. Bone Marrow Red bone marrow has hematopoietic function

The Structure and Function of Bones Provide nutrition for bone, make bone grow and thicken continuously, promote bone healing and regeneration. Red bone marrow has hematopoietic function. Periosteum Bony Substance Bone Marrow Living Bones Compact Bone Cancellous Bone Resisting stresses and bending. The structure is loose, honeycomb and light

The Chemical Composition and Physical Properties of Bones Living bones are plastic tissues with organic and inorganic components.Bones have an organic framework of fibrous tissue and cells,among which inorganic salts are deposited. Organic material:The organic material (the main one is collagen)forms 30~40 percent and gives the bones resilience and toughness; Inorganic material:The inorganic material,mineral salts, (the main one is calcium phosphate)60~70 per cent of the dry weight of the bone and gives the bones hardness and rigidity and make them opaque to X-rays

The Chemical Composition and Physical Properties of Bones Living bones are plastic tissues with organic and inorganic components. Bones have an organic framework of fibrous tissue and cells, among which inorganic salts are deposited. Organic material: The organic material (the main one is collagen) forms 30～40 percent and gives the bones resilience and toughness; Inorganic material: The inorganic material, mineral salts, (the main one is calcium phosphate) 60～70 per cent of the dry weight of the bone and gives the bones hardness and rigidity and make them opaque to X-rays

The Chemical Composition and Physical Properties of Bones The physical properties of the bones depend upon the chemical components which change with age. In infant and child,the organic components are relatively more than those in adult,so their bones are softer,and are easy to be deformed. But in the old people,the inorganic components are comparatively more,and bone fracture in the aged people is more often

The Chemical Composition and Physical Properties of Bones The physical properties of the bones depend upon the chemical components which change with age. In infant and child, the organic components are relatively more than those in adult, so their bones are softer, and are easy to be deformed. But in the old people, the inorganic components are comparatively more, and bone fracture in the aged people is more often

Bone Union The bones are connected together by fibrous,cartilaginous or osseous tissues at different parts of their surfaces,and such a connection is designated by the name of bone union. Direct Connection The two bones are connected by connective Connection tissue membrane,cartilage or bone.Unable to move or limited in scope. Mode Indirect Connection The two bones are connected by membranous cysts.They are called joints

Bone Union The bones are connected together by fibrous, cartilaginous or osseous tissues at different parts of their surfaces, and such a connection is designated by the name of bone union. Connection Mode Direct Connection Indirect Connection The two bones are connected by connective tissue membrane, cartilage or bone. Unable to move or limited in scope. The two bones are connected by membranous cysts. They are called joints

Connect bone Articular Articular Cartilage Cavity Fibrous Layer Connect bone Synovial Layer Articular Capsule

Articular Cavity Connect bone Connect bone Articular Cartilage Fibrous Layer Synovial Layer Articular Capsule