Latest news from Duxbury, MA collected exclusively by city-data.com from local newspapers, TV, and radio stations. Ancestries: English (31.7%), Irish (13.8%), German (8.2%), Italian (5.0%), British (4.9%), Slovak (2.9%). Current Local Time: EST time zone. Incorporated in 1637. Elevation: 36 feet. Land area: 2.17 square miles.
Hinge joints allow movement in one direction, as seen in the knees  and elbows and fingers.    FUNCTION: The purpose of joints is to provide movement for the  body.
3. Hinge joints: The joint surfaces are arranged to allow only back and forth movement such as bending and straightening. Examples of these joints are the elbow where the humerus and ulna join and the knee. 4. Pivot joints: These joints allow only one type of movement, the rotation of one bone on or around another.An example of a pivot joint is the joint between the atlas and axis (C1 & C2) vertebrae, the rotation around each other allows our heads to âpivotâ left and right.5.. Hinge joints: The joint surfaces are arranged to allow only back and forth movement such as bending and straightening. Examples of these joints are the elbow where the humerus and ulna join and the knee. 4. Pivot joints: These joints allow only one type of movement, the rotation of one bone on or around another.