I think the answer you're looking for is the head.Or it could be the condyles.
A smooth rounded end of the bone is called a condyle.
CONDYLE
Condyle
The scientific term for bone end is "epiphysis." This is the rounded end of a long bone that forms a joint with another bone.
The epiphysis is the rounded end of a long bone.
Patella
Most bone ends are rounded.
The epiphysis is the rounded end of a long bone, at its joint with adjacent bone.
A rounded process that usually articulates with another bone is called a condyle. Condyles are rounded projections at the end of a bone that form joints with other bones, allowing for smooth and stable movement.
Epiphyses is the word used for the distal and proximal ends of long bones. The epiphysis contains red bone marrow.
A condyle is a rounded prominence at the end of a bone, typically part of a joint. It helps facilitate smooth movement and stabilization of the joint during motion. Condyles are often found in areas such as the knee, elbow, and jaw.
A large rounded articulating knob is referred to as a condyle. It is a bone structure found at the end of a bone that forms an articulation (joint) with another bone, allowing for movement. Condyles are typically rounded and smooth, facilitating the gliding and rotation of bones within a joint, such as the femoral condyles in the knee.