Question

What is the type of movable joint present between the atlas and axis?

• A. Pivot
• B. Saddle
• C. Hinge
• D. Gliding

Answer 1

The correct option is A Pivot

Pivot joint:

• Pivot joint allows movement in one direction.
• Pivot joint is present between atlas(1st vertebral bone) and axis bone(2nd vertebral bone)

Saddle joint:

• Saddle joint or sellar joints present between carpal(bones of the wrist) and metacarpal(bones of palm) of thumb.
• Saddle joints show biaxial rotation
• It shows rotation around two planes.

Hinge joint:

• Joint which creates a hinge between the movement of two bones.
• This joint allows movement only in one direction.
• Interphalangeal joint is a type of hinge joint present between phalanges(bones of fingers)

Gliding joint:

• Gliding joint is a type of synovial joint.
• No rotation is possible due to the presence of cartilage.
• Present in the carpals and tarsals.

Final answer: Pivot