The ligament is a tough band of slightly ❌ which connects ❌ and stabilises joints during movement.
Synovial fluid is a ❌ liquid contained within the ❌ which reduces friction and nourishes articular cartilage.
The articular cartilage is a smooth tissue which covers the surface of the ❌ which absorbs shock and allows friction-free movement.
The joint capsule is a ❌ with an inner synovial membrane which encloses and ❌ the joint secreting synovial fluid.
The bursa is a closed, fluid-filled sac found where tendons rub over bones. It reduces friction between ❌

Abduction - the movement of ❌
Adduction - the movement of ❌

Horizontal flexion - the movement of the limbs ❌ midline of the body parallel to the ground.
Horizontal extension - the movement of the limbs ❌ midline of the body parallel to the ground.

Plantar flexion - movement ❌.
Doris-Flexion - movement ❌.