Joints: What are they? What are your types?

The body is composed of various structures for a total harmony and to be allowed better mobility and dexterity in his movements. This publication will provide information about the joints.

The joint are structures that connect two or more skeletal parts that could be bone and / or cartilage. In addition to allowing the union between these

structures, joint work in order to allow the skeletal parts to move in response to muscle contractions (LACERDA, et al., 2009).

Characterized by some classifications, the joints depend on a few factors to determine their classification, as follows:

duration:

Temporary (Ex. Epiphyseal line)

Permanent (Ex. Shoulder Joint)

Way of fixing the bone:

Continuity (Do. intervertebral disc)

Contiguity (Ex. Elbow joint)

Nature of the interjacent tissue:

Fibrous (PROPERTY) – suture syndesmosis and gonfose.

Ex de Sutura

Ex de Sutura

Ex: Sindesmoses

Ex: Sindesmoses

Ex: Gonfoses

Ex: Gonfoses

Cartilage (SEMI-MOBILE) – Synchondrosis and Symphysis

Ex: Sicondrose craniana

Ex: Sicondrose craniana

Ex: Sicondrose pós craniana

Ex: Sicondrose pós craniana

Ex: Sínfises

Ex: Sínfises

Synovial (MOVE) – Flat, ginglymus, trocóide, condylar, seal, spheroid.

Ex: Sinovial

Ex: Sinovial

Number of shafts

NOT AXIAL

Flat (sliding)

UNI-AXIAL:

Ginglymus (flexion / extension) (CROSS SHAFT)

Trocoide (medial / lateral rotation) (LONGITUDINAL AXIS)

BI-AXIAL

Condylar (flexion / extension, adduction / abduction) (AXIS CROSS and SAGITTAL).

Seal (flexion / extension, adduction / abduction) (AXIS CROSS and SAGITTAL).

TRI-AXIAL

Spheroid (circumduction) (ALL AXES) (FLEXION / EXTENSION, ADDUCTION / ABDUCTION AND ROTATION MEDIAL / LATERAL).

Number of bones

SIMPLE: Comprising two bones

COMPOSITE (or complex): Consisting of 3 or more bones.

Soon more facts about the joints, follow our page.