joints l.
Download
Skip this Video
Loading SlideShow in 5 Seconds..
Joints PowerPoint Presentation
Download Presentation
Joints

Loading in 2 Seconds...

play fullscreen
1 / 24

Joints - PowerPoint PPT Presentation


  • 270 Views
  • Uploaded on

Joints. Also called articulations, arthroses Arthrology- the study of joints Kinesiology- the study of movement. Joints are classified structurally. Fibrous: held together by fibrous tissue Cartilaginous Synovial joints Synovial cavity separates joints

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about 'Joints' - adamdaniel


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
joints
Joints
  • Also called articulations, arthroses
  • Arthrology- the study of joints
  • Kinesiology- the study of movement
joints are classified structurally
Joints are classified structurally
  • Fibrous: held together by fibrous tissue
  • Cartilaginous
  • Synovial joints
    • Synovial cavity separates joints
    • Dense irregular connective tissue connects them
    • Ligaments may be involved
joints are classified functionally
Joints are classified functionally
  • Synarthroses- immovable
  • Amphiarthroses- slightly movabel
  • Diarthroses- freely movable; all synovial
types of fibrous joints
Types of fibrous joints
  • Sutures are irregular and therefore stronger
    • Some disappear in childhood (synostosis)
    • Metopic suture persists
  • Syndesmoses
    • amphiarthroses
  • Gomphoses
    • Joint between tooth and alveolar process
    • synarthrosis
cartilaginous joints
Cartilaginous joints
  • Synchondrosis
    • Example: epiphyseal plate
    • Ossifies later in life
    • synarthrosis
  • Symphysis
    • Ends of bones are covered by hyaline cartilage
    • Bones are connected by fibrocartilage
    • amphiarthrosis
unique features of synovial joints
Unique features of synovial joints
  • Synovial cavity
  • Joint is freely movable
  • Articular cartilage reduces friction
  • Articular capsule
    • Fibrous capsule, synovial membrane
  • Ligaments
    • Regular tissue very strong
  • May have adipose tissue (fat pad)
  • Synovial fluid
synovial joints continued
Synovial joints, continued
  • Accessory ligaments might be outside or inside articular capsule (but not within synovial membrane)
  • Menisci within synovial joints can improve “fit” or create separate compartments
arthroscopy
Arthroscopy
  • Minimally invasive, helps assess damage
  • May be used to assist surgery
sprain
Sprain
  • Torn ligaments
  • Blood vessels often ruptured
  • May damage surrounding tissues
  • Lots of inflammation
minimizing friction
Minimizing friction
  • Bursae are fluid-filled sacs
  • Tendon sheaths provide cushioning where there is a lot of movement
types of joints movement
Types of joints (movement)
  • Planar
    • Articulating surfaces are flat
    • Gliding movement (slight)
  • Hinge
    • Knee, elbow, phalangeal
  • Pivot
    • rotation
more joints
More joints
  • Condyloid joint
    • Ellipsoidal, biaxial
  • Saddle
    • More movement than condyloid
  • Ball-and-socket
    • Movement around three axes
    • Hip and shoulder
types of movement

Types of movement

Body is in anatomical position

Described as pairs of opposing movements

angular movements
Angular movements
  • Flexion and extension
  • Allowed by hinge, pivot, condyloid, saddle and ball-and-socket joints
  • Change in distance between the angle of articulating bones
joint disorders
Joint disorders
  • Inflammation
    • Bursitis
      • Bursae
        • Repetitive motion
        • bunions
    • Arthritis
      • Synovial joints
      • Many causes
        • Degeneration
        • Autoimmune
        • Secondary infection
slide21
Gout
  • Uric acid crystals form in synovium
  • Metabolic disorder
  • More common in men
trauma
Trauma
  • Dislocations
  • Fractures
  • Sprains
  • Strains
  • Knees and ankles are especially susceptible (there is a lot to damage)
summary
Summary
  • Joints are classified by structure and function
  • Synovial joints are varied and allow a wide range of motion
  • Motion is limited by articulations at synovial joints, types of ligaments and muscles
  • Age and disease can adversely affect joints