MICROANATOMY

Detailed explanation-1: -At synovial joints, the articular surfaces of bones are covered with smooth articular cartilage. This gives the bones of a synovial joint the ability to move smoothly against each other, allowing for increased joint mobility.

Detailed explanation-2: -Facet-A smooth, flat surface that forms a joint with another flat bone or another facet, together creating a gliding joint. Examples can be seen in the facet joints of the vertebrae, which allow for flexion and extension of the spine.

Detailed explanation-3: -The correct answer is condyle. A condyle is a rounded, convex projection typically at the end of bones and is found in joints such as the medial and lateral condyle of the femur in the knee joint or the condyle of the humerus in the elbow joint.

Detailed explanation-4: -Subchondral tissue. This is the smooth tissue at the ends of bones, which is covered with another type of tissue called cartilage. Cartilage is a specialized, rubbery connective tissue.

Detailed explanation-5: -The biological structure that provides a smooth and lubricated surface for bone movement is cartilage.