Functional classifications of joints

3?

A.  Synarthrosis-  immovable joint 

B. Amphiarthrosis-  Little movement joints 

C.  Diarthrosis -  highly removable joint 

 Syndesmosis 

 Suture 

 Gumphosis

Schindylesis

 -Considerable space between bones 

- United by inter interrosseous membrane or ligament 

-  Little movement possible 

-distal tibiaofibula joint

 Suture 

 Classify 

&

5 types

= to sew

-  bones are very close together 

-  United by a small amount of dense connective tissue 

-  immovable?? 

-Serrate, Denticular, Squamous, Limbus, and Plane

 Edges are serrated 

 Sagittal suture -  parietal bones 

 Tooth like

 Lambdoidal -  parietal and occipital bones 

 Bones overlap 

Squamous surure -  temporal and parental 

 Overlap and serrated 

 Parietal and frontal bone 

Apposition of rough surfaces

 Maxilla and zygomatic 

(gomphos = nail)

 Peg and socket held together by fibrous connective tissue 

 Roots of the teeth in the maxilla and mandible 

( splintering )

 Rigid bone fits into a groove 

Vomere and sphenoid

(synchondrosis)

 Usually primarily cartilaginous joints that appear in the up at the epiphyseal plate. They are temporary joints that are later replaced by bone.

(Symphsis)

grown together

 Pubic synthesis 

 Vertebral disc 

( Diarthrosis )

 Contains a joint cavity that separates bones 

 Simple =  two articulating surfaces 

 Compound = more than two 

complex = includes a meniscus

gliding joint, plane joint

services are flat or slightly concave / convex

-  vertebral column 

-  Intercarpal / intertarsal joints 

Another name for hinge joint

Ginglymus joint

 Movement is limited to one plane, flexion and extension 

- Humeroulnar joint

- Interphangeal

- Knee - sort of.....  It actually has a small amount of rotation 

Torchoid joint (pivot joint)

 Central bony pivot surrounded by an osteoligamentous ring.

- movement is rotations around a longitudinal axis which passes through the pivot. Movement is rotations around a longitudinal axis which passes through the pivot 

 pivot rotates - example;

 Radial ulna joint

ring rotates around pivot - example - Alantoaxial joint

 Hey convex surface articulates with the concave surface. The main movement is flexion and extension. However there may be a small amount of rotation 

- Metacarpalphangeal

-Atlanto-occipital (sometimes)

Biaxial 

 Similar to a condyloid except surfaces are elliptical. Movements include; flexion\extension, abduction/abduction and in circumduction but NO rotation 

-radio-carpal joint

-Atlanto-occipital (sometimes)

(Saddle joint)

 Shaped like a saddle with both a concave convex surface. Movements are the same as ellipsoidal but seller has greater amount of movement .

Spheroid joint (Ball and socket)

 Roundhead that fits into a cup like cavity. Movement includes; flexion/extension, abduction/adduction, circumduction and rotation.

 Glenohumeral joint and Femoroacetabular joint