Questions: What type of tissue are intervertebral discs composed of? - Hyaline cartilage - Elastic connective tissue - Elastic cartilage - Fibrocartilage - Areolar connective tissue

The answer is the fourth one: Fibrocartilage.

Explanation for each option:

• Hyaline cartilage: This type of cartilage is found in areas such as the nose, trachea, and at the ends of long bones where it provides smooth surfaces for movement at joints. It is not the primary component of intervertebral discs.

• Elastic connective tissue: This tissue contains elastic fibers and is found in structures that require flexibility, such as the external ear and epiglottis. It is not the main tissue type in intervertebral discs.

• Elastic cartilage: Similar to elastic connective tissue, elastic cartilage is found in areas requiring elasticity, like the ear. It is not the tissue that makes up intervertebral discs.

• Fibrocartilage: This is the correct answer. Fibrocartilage is a tough, dense, and fibrous material that makes up the intervertebral discs. It provides strength and support to the spine, allowing it to withstand compression and tension.

• Areolar connective tissue: This is a loose connective tissue that holds organs in place and attaches epithelial tissue to underlying tissues. It is not the tissue type found in intervertebral discs.

In summary, intervertebral discs are composed of fibrocartilage, which provides the necessary strength and flexibility to support the spine.