MICROANATOMY

Detailed explanation-1: -A round end of one bone fits into the cavity of another bone in case of which joint: Q.

Detailed explanation-2: -Ball-and-socket joints possess a rounded, ball-like end of one bone fitting into a cuplike socket of another bone. This organization allows the greatest range of motion, as all movement types are possible in all directions. Examples of ball-and-socket joints are the shoulder and hip joints (Figure 38.3. 10).

Detailed explanation-3: -Ball-and-socket joints, such as the shoulder and hip joints, allow backward, forward, sideways, and rotating movements. Hinge joints. Hinge joints, such as in the fingers, knees, elbows, and toes, allow only bending and straightening movements.

Detailed explanation-4: -The hip joint (see the image below) is a ball-and-socket synovial joint: the ball is the femoral head, and the socket is the acetabulum. The hip joint is the articulation of the pelvis with the femur, which connects the axial skeleton with the lower extremity.