gomphosis joints

Examples of gomphosis joints in the following topics:

• Gomphoses

  • A gomphosis is a fibrous joint that binds the teeth to bony sockets in the bones of the maxilla mandible.
  • A gomphosis is a joint that anchors a tooth to its socket.
  • Each tooth has bony protrusions or pegs that latch into the socket with the assistance of the gomphosis.
  • This particular joint is an example of a synarthrosis, a joint with limited to no movement.
  • One disorder that can affect the gomphosis is scurvy, a disease of connective tissue.

• Functional Classification of Joints

  • This category includes fibrous joints such as suture joints (found in the cranium) and gomphosis joints (found between teeth and sockets of the maxilla and mandible).
  • Most joints in this category include cartilaginous joints such as those found between vertebrae and the pubic symphysis.
  • An example is the elbow joint.
  • Multiaxial – Includes the ball and socket joints.
  • An example is the hip joint.

• Structural Classification of Joints

  • Joints provide the means for movement.
  • Gomphosis is a type of joint found at the articulation between teeth and the sockets of the maxilla or mandible (dental-alveolar joint).
  • They allow more movement than fibrous joints but less than that of synovial joints.
  • (a) Sutures (b) Syndesmosis  (c) Gomphosis.
  • Image demonstrates a synchondrosis joint with epiphyseal plate (temporary hyaline cartilage joint) indicated (a) and a symphysis joint (b).

• Fibrous Joints

  • Fibrous joints are also called fixed or immovable joints because they do not move.
  • There are three structural classifications of joints:
  • These joints are also called fixed or immovable joints because they do not move.
  • Fibrous joints have no joint cavity and are connected via fibrous connective tissue.
  • The movement of the root within a gomphosis has a threefold effect.

• Types of Synovial Joints

  • Anatomical joints may consist of a combination of two or more joint types.
  • The atlanto-axial joint, proximal radioulnar joint, and distal radioulnar joint are examples of pivot joints.
  • Examples include the wrist joint (radiocarpal joint) and the temporomandibular joint.
  • The knee joint is an example of a compound joint/modified hinge joint where different types of joints combine.
  • Collection of Joint Movements (Example): Wave your arm (hinge joint) and hand (condyloid joint) while nodding your head (pivot joint), and giving a thumbs up (saddle joint).

• Synovial Joint Movements

  • A synovial joint, also known as a diarthrosis, is the most common and most movable type of joint in the body of a mammal.
  • Structural and functional differences distinguish synovial joints from cartilaginous joints (synchondroses and symphyses) and fibrous joints (sutures, gomphoses, and syndesmoses).
  • There are six types of synovial joints.
  • The six types of joints include:
  • Saddle joints - permit the same movement as condyloid joints and combine with them to form compound joints

• Joints and Aging

  • Aging is a common cause of chronic joint pain, as wear and tear on the joints from use results in inflammation and osteoarthritis.
  • Aging is a common cause of chronic or persistent joint pain, as wear and tear on the joints from use results in inflammation and osteoarthritis.
  • Injuries are another common cause of joint aches.
  • Many different remedies for joint pain are available.
  • The red box shows the normal joint.

• Common Joint Injuries

• Cartilaginous Joints: Synchodroses

  • Cartilaginous joints allow more movement between bones than a fibrous joint but less than the highly mobile synovial joint.
  • The joint between the manubrium and the sternum is an example of a cartilaginous joint.
  • Where the connecting medium is hyaline cartilage, a cartilaginous joint is termed a synchondrosis or primary cartilaginous joint.
  • A synchondrosis joint is the first sternocostal joint (where the first rib meets the sternum).
  • The rest of the sternocostal joints are synovial plane joints.

• Syndesmoses

  • Like other joint tissue, it is designed to be able to deform and flex rather than shred or fracture on impact, allowing the joint to absorb considerable stress before damage occurs.
  • Along with symphysis joints, syndesmoses are classified as amphiarthrosis joints in that they allow slight movement.
  • Joints of this kind are found at several points in the human body, including the intermediate radioulnar joint where the radius and ulna meet above the wrist, in the spine between the spinous processes of various adjacent vertebra, and above the ankle joint where the tibia and fibula converge.
  • Located directly above the ankle joint, which is a synovial hinge joint, the ankle syndesmosis is held together by four ligaments.
  • Due to the limited flexibility in these joint structures, ligament injuries in syndesmosis joints are common, particularly at the wrist and ankle.