Where could this tissue be found in the body?

Where could this tissue be found in the body?

• A. Tendon
• B. Skin
• C. Ligaments
• D. Trachea

Answer: (B)

Recognizing tissue type by its structure and associating it with where that tissue normally resides is what this item tests. If the sample shows a surface layer of keratinized, stratified squamous epithelium with multiple cell layers and a underlying fibrous connective tissue layer, that points to the skin. The epidermis is a thick, protective barrier made of flattened, keratin-rich cells, and beneath it lies the dermis, which contains dense irregular connective tissue with collagen fibers and sometimes hair follicles or glands. This combination is distinctive to skin and not seen in tendons or ligaments, which are made mostly of dense regular connective tissue with parallel collagen fibers, nor in the trachea, which has a ciliated pseudostratified columnar epithelium and cartilage rings.

Recognizing tissue type by its structure and associating it with where that tissue normally resides is what this item tests. If the sample shows a surface layer of keratinized, stratified squamous epithelium with multiple cell layers and a underlying fibrous connective tissue layer, that points to the skin. The epidermis is a thick, protective barrier made of flattened, keratin-rich cells, and beneath it lies the dermis, which contains dense irregular connective tissue with collagen fibers and sometimes hair follicles or glands. This combination is distinctive to skin and not seen in tendons or ligaments, which are made mostly of dense regular connective tissue with parallel collagen fibers, nor in the trachea, which has a ciliated pseudostratified columnar epithelium and cartilage rings.