Synarthrosis Joint Classification Quiz and Flashcards

Study Notes

Types of Joints

Diarthroses predominate in the limbs and are also called synovial joints or diarthrodial joints.

Synovial Joints

Plane: Flat articular surfaces that allow for short gliding movements.
Hinge: Cylindrical end of one bone fits into the trough of another bone, allowing for angular movement in one plane.
Pivot: Rounded end of one bone fits into a ring formed by another bone, allowing for rotation.
Condyloid: Egg-shaped articular surface fits into the oval concavity in another, allowing for flexion, extension, abduction, and adduction.
Saddle: Has both convex and concave areas, allowing for flexion, extension, abduction, adduction, and circumduction.
Ball and socket: Spherical head of one bone fits into a round socket in another, allowing for the most freedom of movement, including flexion, extension, abduction, adduction, circumflexion, and rotation.

Classification of Joints

Classification based on function: Synarthroses, Amphiarthroses, Diarthroses.
Classification based on structure: Fibrous joints, Cartilaginous Joints, Synovial Joints.

Classification of Joints by Movement/Function

Synarthroses: immovable joints (sutures).
Amphiarthroses: slightly movable joints (cartilaginous connection).
Diarthroses: freely movable joints (synovial).

Classification of Joints by Structure

Fibrous joints: composed of fibrous (inelastic) connective tissue, non-movable.
Cartilaginous Joints: formed by cartilage, semimovable.
Synovial Joints: movable joints, contain a joint capsule of synovial membrane.

Synovial Joints

No direct union between the bone ends, joint cavity inside the articular capsule is filled with synovial fluid.
Extracapsular ligaments hold the bones in position, Intracapsular ligaments control degree and direction of movement.
Articular surface is very smooth and covered with cartilage called hyaline or articular cartilage.

Arthrology

Arthrology is the scientific study of joints and articulations.

Description

Test your knowledge on arthrology, the scientific study of joints, and the classification of joints based on function and structure. Learn about synarthroses, amphiarthroses, diarthroses, fibrous joints, cartilaginous joints, and synovial joints.