Joints of the human body. Joints are the point of contact (articulations) between two connecting...

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Joints of the human body

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Transcript of Joints of the human body. Joints are the point of contact (articulations) between two connecting...

Page 1: Joints of the human body. Joints are the point of contact (articulations) between two connecting bones. The stability and the integrity of joints are.

Joints of the human body

Page 2: Joints of the human body. Joints are the point of contact (articulations) between two connecting bones. The stability and the integrity of joints are.

Joints of the human bodyJoints are the point of contact

(articulations) between two connecting bones.

The stability and the integrity of joints are maintained by strands of connective tissue called ligaments, which hold bones together.

Page 3: Joints of the human body. Joints are the point of contact (articulations) between two connecting bones. The stability and the integrity of joints are.

Classification of JointsStructural classification of joints

recognize three types of joints.

Fibrous Joints

Cartilaginous Joints

Synovial Joints

Page 4: Joints of the human body. Joints are the point of contact (articulations) between two connecting bones. The stability and the integrity of joints are.

Classification of Joints (Structure)Joint types

Description Examples

Fibrous Joints

Bound tightly together by connective tissue and allow no movement.

The sutures between the bones of the skull (vault)

Cartilaginous Joints:

The body of one bone connects with the body of another by means of cartilage. These joints can absorb shock, and allow slight movement.

The intervertebral disks of the vertebral column & Symphysis pubis

Synovial Joints:

Joints that allow the greatest range of motion. Bony surfaces are separated by a lubricating fluid and by cartilage. They are also joined by ligaments that enclose the end of articulating bones and form the capsule containing the synovial membrane

Knee joint

Shoulder joint

Hip joint

Etc.

Page 5: Joints of the human body. Joints are the point of contact (articulations) between two connecting bones. The stability and the integrity of joints are.

Characteristics of a Synovial Joint1. Articulating cartilage:

The hyaline cartilage located at the ends of the bones allow for smooth contact surfaces for bones to move.

They also act as shock absorbers

Page 6: Joints of the human body. Joints are the point of contact (articulations) between two connecting bones. The stability and the integrity of joints are.

Characteristics of a Synovial Joint2. Joint capsule:

Consists of a synovial membrane and a fibrous capsule.

Synovial membrane: Allows certain nutrients to pass through

Fibrous capsule: Keeps synovial fluid is

Page 7: Joints of the human body. Joints are the point of contact (articulations) between two connecting bones. The stability and the integrity of joints are.
Page 8: Joints of the human body. Joints are the point of contact (articulations) between two connecting bones. The stability and the integrity of joints are.

Characteristics of a Synovial Joint3. Joint Cavity

Located between to bony surfaces, this cavity is filled with synovial fluid which lubricates the joint.

This lubricant reduces friction between the bones, and also provides nutrients for the articulating cartilage

Page 9: Joints of the human body. Joints are the point of contact (articulations) between two connecting bones. The stability and the integrity of joints are.
Page 10: Joints of the human body. Joints are the point of contact (articulations) between two connecting bones. The stability and the integrity of joints are.

Characteristics of a Synovial Joint4. Bursae

These small fluid-filled sacs are found at friction points between ligaments, tendons, and bones.

They provide cusion, reduce friction and allow free movement in the joint.

Page 11: Joints of the human body. Joints are the point of contact (articulations) between two connecting bones. The stability and the integrity of joints are.

Characteristics of a Synovial Joint5. Intrinsic Ligaments

Thick bands of connective tissue that reinforce the joint capsule

6. Extrinsic Ligaments Seperate from the joint capsule, they

help reinforce the joint by attaching the bones together

Page 12: Joints of the human body. Joints are the point of contact (articulations) between two connecting bones. The stability and the integrity of joints are.
Page 13: Joints of the human body. Joints are the point of contact (articulations) between two connecting bones. The stability and the integrity of joints are.

Types of Synovial JointsSynovial joints are often

distinguished by the kind of movement the joint permits.

There are 6 types of synovial joints: Hinge Joints Pivot Joints Ellipsoid (Condyloid) Joints Saddle Joints Ball and socket Joints Plane (Glidding) Joints

Page 14: Joints of the human body. Joints are the point of contact (articulations) between two connecting bones. The stability and the integrity of joints are.

Hinge JointsUnilateral JointOne articulating surface

is convex and the other is concave

Examples: Humero-ulnar joint Interphalangeal joints (fingers)

Page 15: Joints of the human body. Joints are the point of contact (articulations) between two connecting bones. The stability and the integrity of joints are.

Pivot JointsUnilateral JointOne bone rotates around one axis

Example: atlantoaxial joint Radioulnar joint

Page 16: Joints of the human body. Joints are the point of contact (articulations) between two connecting bones. The stability and the integrity of joints are.

Ellipsoid (Condyloid) JointsBilateral

(flexion-extension, abduction-adduction)

One surface is a ovular convex shape, and the other is a reciprocally concave surface.

Page 17: Joints of the human body. Joints are the point of contact (articulations) between two connecting bones. The stability and the integrity of joints are.

Saddle JointBilateral

(flexion-extension, abduction-adduction)

Bone are set together as in sitting on a horse

Example Carpometacarpal joint

Page 18: Joints of the human body. Joints are the point of contact (articulations) between two connecting bones. The stability and the integrity of joints are.
Page 19: Joints of the human body. Joints are the point of contact (articulations) between two connecting bones. The stability and the integrity of joints are.

Ball and Socket JointTrilateralA rounded bone is fitted into a

cup-like receptacle

Examples: Iliofemoral joint Glenohumeral joint

Page 20: Joints of the human body. Joints are the point of contact (articulations) between two connecting bones. The stability and the integrity of joints are.

Gliding JointUnilateralJoint permits gliding movementsThe bone surfaces are nearly flat,

so the only movement allowed is a gliding action

Page 21: Joints of the human body. Joints are the point of contact (articulations) between two connecting bones. The stability and the integrity of joints are.

Types of Synovial Joints


The Skeletal System Joints. Joints Articulations of bones Functions of joints Hold bones together Allow for mobility Ways joints are classified.

The Skeletal System Joints. Joints Articulations of bones Functions of joints Hold bones together Allow for mobility Ways joints are classified.

Articulations Chapter 9. Introduction Skeleton composition –Many bones joined together (articulated) Articulation –Joints Advantages and disadvantages.

Articulations Chapter 9. Introduction Skeleton composition –Many bones joined together (articulated) Articulation –Joints Advantages and disadvantages.

Joints Articulations of bones Functions of joints – Hold bones together – Allow for mobility Two ways joints are classified – Functionally – Structurally.

Joints Articulations of bones Functions of joints – Hold bones together – Allow for mobility Two ways joints are classified – Functionally – Structurally.

Skulls bones and articulations

Skulls bones and articulations

The Skeletal System. Joints Articulations of bones Functions of joints –Hold bones together –Allow for mobility Ways joints are classified –Functionally.

The Skeletal System. Joints Articulations of bones Functions of joints –Hold bones together –Allow for mobility Ways joints are classified –Functionally.

Articulations and Movement. Articulations or Joints Articulation or Joint –Place where two bones come together –Freely movable to limited to no apparent.

Articulations and Movement. Articulations or Joints Articulation or Joint –Place where two bones come together –Freely movable to limited to no apparent.

Chapter 9: Articulations 1. Articulations Body movement occurs at joints where 2 bones connect Articulation = joints; site where two or more bones meet.

Chapter 9: Articulations 1. Articulations Body movement occurs at joints where 2 bones connect Articulation = joints; site where two or more bones meet.

JOINTS & Articulations. Joints occur where 2 bones meet. They may: join two bones with as little flexibility as possible join two bones with a little.

JOINTS & Articulations. Joints occur where 2 bones meet. They may: join two bones with as little flexibility as possible join two bones with a little.

Buy your lab coat and gloves!. Chapter 9 Joints = Articulations Where ANY bones come together.

Buy your lab coat and gloves!. Chapter 9 Joints = Articulations Where ANY bones come together.

Chapter 9: Articulations. Articulations Body movement occurs at joints (articulations) where 2 bones connect Body movement occurs at joints (articulations)

Chapter 9: Articulations. Articulations Body movement occurs at joints (articulations) where 2 bones connect Body movement occurs at joints (articulations)

Joints Part 2: Support & Movement. Joints Joints or Articulations: Locations were bones join together that allow for some degree of movement. Arthrology:

Joints Part 2: Support & Movement. Joints Joints or Articulations: Locations were bones join together that allow for some degree of movement. Arthrology:

Ex 13. Articulations- joints - hold bones together - Allows for movement Classified based on - Structure - functionality.

Ex 13. Articulations- joints - hold bones together - Allows for movement Classified based on - Structure - functionality.

JOINTS Chapter 9. Introduction Joints or articulations are sites where two or more bones meet Joints have two fundamental functions: –provide for skeletal.

JOINTS Chapter 9. Introduction Joints or articulations are sites where two or more bones meet Joints have two fundamental functions: –provide for skeletal.

Joints Chapter 8. Joints (Articulations) Articulation—site where two or more bones meet Functions of joints: – Give skeleton mobility – Hold skeleton.

Joints Chapter 8. Joints (Articulations) Articulation—site where two or more bones meet Functions of joints: – Give skeleton mobility – Hold skeleton.

Joints Chapter 8, Section 1. The science of joints is called arthrology. Joints, also called articulations, are functional junctions between two bones.

Joints Chapter 8, Section 1. The science of joints is called arthrology. Joints, also called articulations, are functional junctions between two bones.

Joints (Articulations) Articulation—site where two or more bones meet Functions of joints: Give skeleton mobility Hold skeleton together.

Joints (Articulations) Articulation—site where two or more bones meet Functions of joints: Give skeleton mobility Hold skeleton together.

Joints Articulations Where 2 or more bones connect.

Joints Articulations Where 2 or more bones connect.

Articulations. Articulations (Joints) Articulations – wherever 2 bones meet Classified by function –Synarthrosis (Immovable) –Amphiarthrosis (slightly.

Articulations. Articulations (Joints) Articulations – wherever 2 bones meet Classified by function –Synarthrosis (Immovable) –Amphiarthrosis (slightly.

Joints of the Skeletal System Chapter 8 8-1. Chapter 8 Joints of the Skeletal System Joints/Articulations Junctions between bones Ligaments connect bone.

Joints of the Skeletal System Chapter 8 8-1. Chapter 8 Joints of the Skeletal System Joints/Articulations Junctions between bones Ligaments connect bone.

Joints Come in Many Types. Joints (Articulations) Functions of joints Classifying Joints: Functional or Structural Naming Movements of Bones Around Joints.

Joints Come in Many Types. Joints (Articulations) Functions of joints Classifying Joints: Functional or Structural Naming Movements of Bones Around Joints.