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Pneumatic bones

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General Biology I

Definition

Pneumatic bones are specialized bones that contain air-filled spaces. These structures help reduce the overall weight of the skeleton while maintaining strength.

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5 Must Know Facts For Your Next Test

  1. Pneumatic bones are commonly found in birds, aiding in flight by reducing skeletal mass.
  2. These bones are connected to the respiratory system, allowing for efficient breathing and oxygen exchange.
  3. Examples of pneumatic bones in birds include the humerus, clavicle, and some vertebrae.
  4. The development and extent of pneumatization can vary among different bird species.
  5. Pneumatic bones also play a role in thermoregulation by dissipating excess body heat.

Review Questions

  • How do pneumatic bones contribute to a bird's ability to fly?
  • Which parts of a bird's skeleton typically contain pneumatic bones?
  • Explain how pneumatic bones are connected to the respiratory system.

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