Final answer:
The synovial capsule encloses synovial joints such as the radiocarpal joint, metacarpophalangeal joint, carpometacarpal joint, and interphalangeal joint.
Step-by-step explanation:
The synovial capsule encloses synovial joints. Examples of synovial joints include the radiocarpal joint of the wrist, the metacarpophalangeal joint (knuckle joint) of the fingers, the carpometacarpal joint of the thumb, and the interphalangeal joint of the fingers and toes.