Unit 9

(a)   joints are composed of an egg-shaped bone known as a condyle that fits into a similarly shaped cavity.

(a)   joint is a freely moveable joint (diarthrosis) that allows only rotary movement around a single axis.

(a)   joint is also known as the gliding joints are composed of two smooth surfaces that slide over one another to produce limited movement. They are primarily found in the ankles, wrist, and spine.

(a)   joints are composed of one bone that is concave, resembling a saddle, and another bone that is convex, resembling a rider. They are found in the thumb, shoulder, and inner ear, and allow for a variety of movement in multiple directions.

(a)   joints are a type of joint that allow bones to move in one direction back and forth with limited motion along other planes.

(a)   joints are composed of one bone with a rounded head that fits into the cup of another bone. Since the rounded head can move freely within the cup, it allows for movement in all directions.