Elastic cartilage

This tutorial covers the characteristics and functions of elastic cartilage, one of the three types of cartilage in the human body. It explains the role of chondrocytes and the extracellular matrix, highlighting the presence of elastic fibers and type 2 collagen. The video also discusses the clinical aspects of cartilage repair and regeneration, emphasizing the challenges due to the avascular nature of cartilage and the immobility of chondrocytes. The tutorial concludes with a recap of the key points, including the locations where elastic cartilage is found, such as the external ear and epiglottis.

Which type of cartilage is most common in the human body?

• Hyaline cartilage

• Elastic cartilage

• Bone cartilage

• Fibrocartilage

Where can elastic cartilage be found in the human body?

• In the nose

• In the external ear

• In the knee joint

• In the spine

What is the primary function of chondrocytes in elastic cartilage?

• To create muscle fibers

• To form bone tissue

• To produce extracellular matrix

• To provide blood supply

What component in the extracellular matrix gives elastic cartilage its flexibility?

• Calcium deposits

• Elastic fibers

• Proteoglycans

• Type 1 collagen

What is the role of the perichondrium in elastic cartilage?

• To create muscle tissue

• To store fat

• To produce bone cells

• To provide nutrients through blood vessels

Why is cartilage tissue unable to fully regenerate?

• Due to its high mitotic rate

• Because it is avascular

• Because it lacks chondrocytes

• Due to its high metabolic rate

What type of tissue is formed during the repair process of injured cartilage?

• Muscle tissue

• Bone tissue

• Dense connective tissue

• Elastic cartilage