Choose the INCORRECT statement regarding articular cartilage:Question 2Answera.It is devoid of blood vesselsb.Has a covering termed the perichondriumc.Its injury is recognized as a cause of significant musculoskeletal morbidityd.Type II collagen represents 90% to 95% of the collagen in ECM and forms fibrils and fibers intertwined with proteoglycan aggregates

The incorrect statement regarding articular cartilage is:

b. It has a covering termed the perichondrium.

Explanation:

a. It is devoid of blood vessels - This statement is correct. Articular cartilage does not have blood vessels, which makes it reliant on diffusion for nutrient supply.

c. Its injury is recognized as a cause of significant musculoskeletal morbidity - This statement is correct. Injury to articular cartilage can lead to significant musculoskeletal problems, such as osteoarthritis.

d. Type II collagen represents 90% to 95% of the collagen in ECM and forms fibrils and fibers intertwined with proteoglycan aggregates - This statement is correct. Type II collagen is the main collagen component of articular cartilage and is responsible for its structural integrity.

Therefore, the incorrect statement is b. It does not have a covering termed the perichondrium. Articular cartilage is not covered by perichondrium, unlike other types of cartilage.