put the steps into the correct order to trace knee degeneration.\n\n1 splits develop in collagen fiber…

put the steps into the correct order to trace knee degeneration.\n\n1 splits develop in collagen fiber layers and the color of the cartilage changes from glistening white to mottled gray or yellow.\n2 hemorrhage and bone necrosis occur; repair takes the form of scar tissue.\n3 as the cartilage continues to erode, it is replaced by bone infiltration, and the bone beneath the cartilage becomes more dense and sclerotic.\n4 areas of the splits become softer than normal.\n5 as the splits in the fiber layers deepen, abrasion of the cartilage continues, eventually exposing the underlying bone.\n6 bone grows at the margins of the articular surface, forming osteophytes, which may grow into the joint space.

put the steps into the correct order to trace knee degeneration.\n\n1 splits develop in collagen fiber layers and the color of the cartilage changes from glistening white to mottled gray or yellow.\n2 hemorrhage and bone necrosis occur; repair takes the form of scar tissue.\n3 as the cartilage continues to erode, it is replaced by bone infiltration, and the bone beneath the cartilage becomes more dense and sclerotic.\n4 areas of the splits become softer than normal.\n5 as the splits in the fiber layers deepen, abrasion of the cartilage continues, eventually exposing the underlying bone.\n6 bone grows at the margins of the articular surface, forming osteophytes, which may grow into the joint space.

Answer

Explanation:

Step1: Identify the initial cartilage changes

The process begins with the softening of the articular cartilage (chondromalacia).

Step2: Observe structural and color changes

Following softening, splits (fibrillation) appear in the collagen layers, and the cartilage loses its white luster.

Step3: Note the progression of erosion

As splits deepen, the cartilage wears away, eventually exposing the subchondral bone.

Step4: Analyze subchondral bone reaction

With the cartilage gone, the underlying bone becomes dense (sclerosis) and may be infiltrated by bone tissue.

Step5: Identify secondary bone growth

Osteophytes (bone spurs) begin to grow at the joint margins and may protrude into the joint space.

Step6: Determine the final stage

The final stage involves severe damage including hemorrhage, bone necrosis, and the formation of fibrous scar tissue.

Answer:

4, 1, 5, 3, 6, 2