The shape of the external ear is due to____________?
- A. Elastic cartilage
- B. Fibrocartilage
- C. Articular cartilage
- D. none
Explanation
The external ear, or pinna, is shaped and supported mainly by elastic cartilage, which bends and returns to its original form. Fibrocartilage is tougher and occurs in structures such as intervertebral discs.