Joints

Created by BossLadyP 

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Ball-and-socket
Hinge Joint
Saddle Joint
Gliding Joint
Pivot Joint
Condyloid Joint

6 groups of Synovial Joint

A hemispherical head and cup like depression.

Ex. Knee and Hip

Ball-and-socket joint

Convex and concave surface.

Ex. Elbow and Leg

Hinge Joint

two surfaces resembling

Ex. trapeziometacarpal- opposing thumb

Saddle Joint

flat or slightly concave and convex surfaces.

Ex. articular processes of vertebrae, sternodavicular

Gliding Joint

Projection fitting into a ring like ligament

Ex. Atlanto-axial joint and proximal radioulnar joint

Pivot Joint

One convex surface with a similarly shaped depression

Ex. Metacarpophalangeal

Condyloid Joint

Synarthroses

Ex. Mandible, Frontal, Sacrum

Bony Joint

Most freely movable, loose and thin capsule, glenoid labrum: supported by ligaments, tendons, muscles. Shoulder is stabilized mainly by the biceps

Humeroscapular Joint

Glenohumeral
Coracohumeral
Transverse humeral
Subdeltoid
Subcoracoid
Subscapular
Suprasinatus
Infraspinatus
Teres Minor
Subscapularis

Stabilizers of the shoulder joint

Weak and absent

Glenohumeral

Extends from coracoid of scapula to greater tubercle of humerus

Coracohumeral

Extends from the greater to lesser tubercle
of the humerus forms a tunnel housing the tendon from long head of the biceps

Transverse humeral

Small synovial sacs between tendons and bones, allowing them to slide more easily past each other

Bursa

Encircle tendon that pass through the palm of the hand

Tendon Sheath

Binds bones

Ligaments

Binds muscles

Tendons

Formed by the articulation of:
-Femur & Os Coxae
Joint capsule strengthened by:
deep socket: acetabular labrum
transverse: acetabular ligament

Hip Joint

Decreases the angle
Bending the elbow or wrist

Flexion

Striaghtens a joint and returns a body part to the anatomical position

Extension

Extension of a joint beyond 180 degrees

Hyperextension

Away from the midsagittal line

Abduction

Towards the midsagittal line

Adduction

Raises a bone vertically

Elevation

Brings the bone down

Depression

Palm is forward

Supination

Palm is backward

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