Joints (pictures)

Pivot Joint

The type of synovial joint formed by the atlas and axis; movement is limited to rotation around a central axis; the joint between the proximal ends of the radius and ulna is another example (p. 156).

Cartilaginous joints

Hyaline cartilage, or fibrocartilage, connects the bones of these joints; joints of this type separate the vertebrae of the vertebral column; the symphysis pubis is also an example; these joints allow limited movement (p. 155).

condyloid joint

Identify the joint indicated by "C". In this joint a condyle of one bone fits into an elliptical cavity of another bone. This arrangement permits a variety of movements in different planes but does not allow rotational movement.

saddle joint

Identify the type of synovial joint indicated "B". The articulating surfaces of this joint have both concave and convex regions and permits a variety of movements (p. 157)

Hinge Joint

Identify the type of synovial joint shown above. Examples of this type of joint include the elbow, knee, and ankle (p. 156).

gliding joint

In this type of synovial joint the articulating surfaces are flat or slightly curved; most of the joints within the wrist and ankle belong to this group (p. 156).

Synovial Joints

Most joints within the skeletal system are of this type and allow free movement (p. 155).

ball-and-socket joint

The joint shown above allows a wider range of motion than does any other kind, permitting movements in all planes and rotation. What type of synovial joint is this? (p. 156).

Fibrous joints

These joints lie between bones that closely contact one another and consists of a thin layer of dense connective tissue; an example of this type of joint is a suture between a pair of flat bones of the skull (p. 154)