In inter-phalangeal joint, capsule is absent in the

In inter-phalangeal joint, capsule is absent in the
a) Medial side
b) Dorsal side
c) Palmar side
d) Lateral side

Answer- b
Explanation:
Interphalangeal joints:
Type:
Hinge variety of synovial joints
Ligaments:
Similar to the metacarpophalangeal joints, that is one palmar fibro-cartilaginous ligament and two collateral bands running down wards and forwards.