Structural Classification of Joints
Ligaments
Longer fibers of dense regular connective tissue
Synovial membrane
Loose connective tissue that lines the joint capsule on the inside and functions to make synovial fluid in synovial joints.
Synovial joints
Most movable type of joint that contains a fluid-filled joint cavity and articular cartilage.
Intracapsular ligaments
Reinforcing ligaments located on the internal side of a joint capsule in a synovial joint.
Extracapsular ligaments
Reinforcing ligaments located on the outside of a joint capsule in a synovial joint
Glycoproteins molecules secreted by fibroblasts
Contents of synovial fluid
Symphyses
Fibrocartilage unites bones and resists tension and compression and provides strength with flexibility.
Reinforcing ligaments
Found in synovial joints and are often the thickened part of the fibrous capsule.
Allow the skull bones to expand with the brain during childhood.
Function of sutures
Diarthrosis
Functional classification of all synovial joints
Synarthrosis
Functional classification of sychondroses
synarthrosis
Functional classification of synchondroses.
Epiphyseal plates and joint between first rib and manubrium
Location of sychrondroses
Intervertebral discs and pubic symphysis
Location of symphyses
Gomphoses
Teeth are held in sockets in the alveolar margin with a connecting ligament
Periodontal ligament
The connecting ligament in gomphoses
Dense regular connective tissue
The fibrous connective tissue that forms fibrous joints.
Length of ligaments
What determines the amount of movement of syndesmoses.
Joint cavity
(synovial cavity) A cavity that is unique to synovial joints and is a potential space that holds a small amount of synovial fluid.
Interosseous membrane
A freely movable, diarthrosis syndesmosis found between the radius and the ulna.
Synovial fluid
A viscous fluid similar to raw egg white that is a filtrate of blood and arises from extensive capillary beds in the synovial membrane
Tibiofibular joint
An inmmovable, synarthrosis syndesmosis
Sensory nerves
Are richly supplied, detect pain, and monitor how much the joint capsule is being stretched in synovial joints.
Several major blood vessels and nerves
Are supplied to each synovial joint and supply overlapping areas of the synovial joint
Fibrous joints
Bones are connected by a fibrous connective tissue and do not have a joint cavity. Has three types sutures, syndesmoses, and gomphoses
Cartilaginous joints
Bones are connected by cartilage and lack a joint cavity. Has two types synchondroses and symphyses
Syndesmoses
Bones are connected by ligaments
Sutures
Bones are tightly bound by a minimal amount of fibrous tissue during childhood and ossify in middle age
Structural classification
Classification of joints based on the materials that bind the bones together and the presence or absence of a joint cavity
synostoses
Closed (ossified) sutures
Fibrous capsule
Dense irregular connective tissue that strengthens synovial joints from the outside
Two layered capsule
Encloses the joint cavity of synovial joints. Composed of a fibrous capsule and a synovial membrane
Articular cartilage
Ends of opposing bones are covered with hyaline cartilage to absorb compression in synovial joints.
Synchondroses
Hyaline cartilage unites bones
Hyaline cartilage
Is present in symphyses but does not unite bones. It only helps the mobility of the joint.
Blood
Is richly supplied to synovial joints and mostly supplies the synovial membrane.
Fibrous, cartilaginous, and synovial joints
Joint categories included in structural classification of joints.
Synarthrosis
The functional classification of gomphoses
Synarthrosis or amphiarthrosis
The functional classifications of most fibrous joints: Immovable or slightly movable.
Bones of the skull
The only location of sutures
Synchondroses and symphyses
Types of cartilaginous joints
Sutures, syndesmoses, and gomphoses
Types of fibrous joints.
