The kind of tissue that forms the supportive structure in our pinna (external ears) is also found in -

The kind of tissue that forms the supportive structure in our pinna (external ears) is also found in -
  1. tip of the nose
  2. vertebrae
  3. nails
  4. ear ossicles

Solution

Explanation: The tissue that forms the supportive structure in the pinna (external ear) is elastic cartilage. Elastic cartilage provides flexibility and support, and it is also found in the tip of the nose and epiglottis. Other options: Vertebrae: Made of bone and cartilage, not elastic cartilage. Nails: Made of keratin, not cartilage. Ear ossicles: Made of bone, not cartilage. Thus, tip of the nose is the correct answer.

Asked in: NEET 2009 (Mains)

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