Flight muscles of birds are attached to

• (a) Keel of the sternum
• (b) Clavicle
• (c) Coracoid
• (d) Scapula

The flight muscles of birds are primarily attached to the keel of the sternum. This keel is an extension of the breastbone that provides a large surface area for the attachment of powerful muscles needed for flight.

Details on Bird Anatomy

Understanding the role of the keel is essential in bird anatomy:

• Keel of the Sternum: Acts as a major anchor point for the flight muscles.
• Clavicle: Helps in stabilizing the wings during flight.
• Coracoid: Supports the shoulder joint and aids in wing movement.
• Scapula: Connects the wing to the body but does not serve as a primary attachment for flight muscles.

In summary, the keel is crucial for enabling birds to achieve the powerful wing strokes necessary for flying efficiently.