1. HUMAN ANATOMY
JOINTS
(aka… articulations)

2. LATIN TERMS that you will find very helpful in remembering JOINTS!
Arthros = joint
Syn = together
Amphi = both sides
Dia = through
Sub = below
Dis = not
Planta = sole
In = into

3. TYPES OF
JOINTS
Use pg. 268 in your book to identify the various types of joints & examples per the human body!

4. “Synarthrosis”
“Amphiarthrosis”
“Diarthrosis” (synovial joints)
e. Ellipsoid/Condyloid: wrist
f. Gliding: metatarsals & phalanges

5. Accessory
Structures
TENDONS: cartilage that connect skeletal muscle to bone
Pass across or around joint
Can limit range of motion
Provide support

6. Dis-stabilizing Joints
Dislocation (luxation)
Articulating bones are forced out of position by extreme stress
Can cause damage to cartilage, ligaments or distort the joint cavity
Subluxation
Partial dislocation
Less severe
“double-jointed” persons more likely to suffer subluxation

7. Synovial Joint Please fill in the back Movements of your Joints wkst!Pg
Synovial Joint
Movements
Please fill in the back
of your Joints wkst!
Gliding: 2 surfaces slide past each other
Circumduction: circular movement of a body part; a combination of flexion, extension, adduction, & abduction
Rotation: motion that occurs when a part turns on its axis

8. Synovial Joint Please fill in the back Movements of your Joints wkst!Pg
Synovial Joint
Movements
Please fill in the back
of your Joints wkst!
Flexion/extension/ hyperextension
Flexion: bending movement that decreases the angle between 2 parts
Extension: straightening movement that increases the angle between body parts
Hyperextension: movement beyond the normal position

9. Synovial Joint Please fill in the back Movements of your Joints wkst!Pg
Synovial Joint
Movements
Please fill in the back
of your Joints wkst!
Supination/pronation
Supination: rotation of forearm so that the palm faces anteriorly (up)
Pronation: rotation of forearm that moves the palm from an anterior-facing position to a posterior-facing position (down)
Opposition: motion involving a grasping of the thumb & fingers

10. Synovial Joint Movements Inversion/eversion Retraction/protractionPg
Synovial Joint
Movements
Inversion/eversion
Inversion: movement of sole of foot towards median plane
Eversion: movement of sole of foot away from median plane
Retraction/protraction
Retraction: posterior movement of arms at the shoulders
Protraction: anterior movement of arms at the shoulders

11. Synovial Joint Movements Depression/elevationPg
Synovial Joint
Movements
Depression/elevation
Depression: movement in an inferior direction
Elevation: movement in a superior direction
Dorsiflexion/plantar flexion
Dorsiflexion: extension of entire foot superiorly
Plantar flexion: flexion of entire foot inferiorly
Lateral flexion: flexion from side to side

12. Synovial Joint Movements Abduction/adduction Pg. 263-267
Abduction: motion that pulls a structure or part away from the midline of the body
Adduction: motion that pulls a structure or part towards the midline of the body