Question 63

A membrane covering the cartilage

The perichondrium is a dense layer of connective tissue that surrounds cartilage, providing it with support and protection while also playing a role in the growth and repair of the cartilage.

A) A fibrous membrane covering the bone

This option is incorrect because the perichondrium specifically pertains to cartilage, not bone. While bones do have a similar protective layer called the periosteum, this option does not accurately describe the function or location of the perichondrium.

B) A membrane covering the cartilage

This option is correct as it accurately defines the perichondrium. It is a fibrous layer that envelops cartilage, aiding in its nutrition and growth, and distinguishing it from other tissues.

C) A thin cartilage layer that works as a shock absorber

This choice is incorrect because the perichondrium is not a cartilage layer itself; rather, it is a connective tissue layer surrounding cartilage. While cartilage can serve as a shock absorber, the perichondrium does not fulfill that role.

D) An opening in the bone to let blood vessels enter it

This option is incorrect as it describes a feature associated with bone structure, such as nutrient foramina, rather than cartilage. The perichondrium does not serve as an opening; it is a protective covering.

Conclusion

The perichondrium is definitively a membrane covering the cartilage, making option B the correct answer. All other options misrepresent either the function or the anatomical context of the perichondrium, highlighting its unique role in relation to cartilage tissue.