Verywell Health on MSN: Why Does My Belly Button Hurt? Minor and Serious Cause of Pain Why Does My Belly Button Hurt? Minor and Serious Cause of Pain Yahoo: What does the appendix do?

Context Explanation

Biologists explain the complicated evolution of this inconvenient organ What does the appendix do? Biologists explain the complicated evolution of this inconvenient organ Houston Chronicle: What does the appendix do? Biologists explain the complicated evolution of this inconvenient organ