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Articulations

Flashcards for Joints/movements

QuestionAnswer
Type & Example of Bony Joints Syntosis, Fusion of two frontal bones into one. Ex, a frontal bone. Synarthrotic- Immovable.
Type & Example of Fibrous Joints Suture (frontal/parietal bones) Gomphosis (Teeth and mandible) and Syndesmosis (Tibia & Fibula). Amphiarthrotic-Semimoveable.
Type & Example of Cartilaginous Joints Synchondrosis (Epiphyseal plate/costal cartilages), Symphysis (between vertebrae, pubic bones) Amphiarthrotic-Semimoveable.
Types & Examples of Synovial Joints Gliding-Between carpal bonesHinge-Humerus and UlnaPivot-Atlas & AxisCondyloid-Radius and ScaphoidSaddle-Trapezium and 1st metacarpalBall-and-socket- Acetabulum and femurDiarthrotic-Freely moveable
Synovial Joints classified by the level of movement. Least to Most:Plane (Glididng)HingePivotCondyloidSaddleBall and Socket
Tempromandibular joint The only diarthrotic joint in the skull. Both a hinge and gliding joint.
Humeroulnar Joint Elbow joint. Hinge and pivot joint.
Acetabulofemoral Joint Hip Joint. Acetabular labrum deepens the socket. (Cartiliginous ring).
Glenohumeral Joint Shoulder Joint. Deepened by the glenoid labrum. Rotator cuff muscles stabalize the joint.
Tibiofemoral Joint Knee Joint. Hinge joint with little to no movement.
Flexion A decrease in the joint angle
Extension The return to anatomical position.
Hyperextension Extending the body part beyond anatomical position.
Abduction Movement of the limbs away from the body.
Adduction The return of the body part to anatomic positon. Adding to the body.
Rotation Circular movement of a part of the body. Lateral-toward the lateral side of the body. Medial-toward the midline of the body.
Supination Palms facing forward. (anatomic position).
Pronation Medial rotation of the hands.
Circumduction Movement of a muscle in a conical shape.
Protraction Horizontal movement in the anterior direction.
Retraction Horizontal movement from the posterior to the anterior direction.
Elevation Movement in the superior direction
Depression Movement in the inferior direction.
Inversion (Supination). Turning the soles of the feet medially so they face each other.
Eversion (Pronation) Turning the soles of the feet laterally (outward).
Fixing Prevention of any muscle contraction in either direction
Prime mover The muscle that has the main force on a joint.
Synergists Muscles that work with the prime mover.
Antagonists Oppose the prime mover.
Created by: Jmmoberg