Which bone cell is responsible for bone formation?

A. Saddle joint: Saddle joints allow biaxial movement (e.g., thumb carpometacarpal joint) but do not permit movement in all directions.
B. Pivot joint: Pivot joints allow rotation around a single axis (e.g., atlantoaxial joint) and therefore do not provide multiaxial movement.
C. Hinge joint: Hinge joints permit movement primarily in one plane (flexion/extension) like the elbow and do not allow movement in all directions.
D. Ball-and-socket joint: Ball-and-socket joints (for example the shoulder and hip) permit multiaxial movement including flexion/extension, abduction/adduction, and rotation, allowing the greatest directional range.

A. Triceps brachii: The triceps brachii primarily extends the elbow and does not play a major role in scapular stabilization.
B. Biceps brachii: The biceps brachii flexes the elbow and assists with forearm supination but is not a primary scapular stabilizer.
C. Quadriceps femoris: The quadriceps femoris is a thigh muscle group that extends the knee and is unrelated to scapular stabilization.
D. Rotator cuff muscles: The rotator cuff (supraspinatus, infraspinatus, teres minor, subscapularis) stabilizes the glenohumeral joint and contributes to dynamic control of the scapula and shoulder during arm movements.