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Question
The flight muscles of birds are attached to:
The flight muscles of birds are attached to:
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Solution
The correct option is D Keel
The keel of the sternum is the breast bone where flight muscles attached to the body. It increases the surface area for muscle attachment. The pectoralis major, the lower muscle on the keel inserts in the humerus and it contracts, pulling the wing down.So, the correct answer is 'Keel'
The keel of the sternum is the breast bone where flight muscles attached to the body. It increases the surface area for muscle attachment. The pectoralis major, the lower muscle on the keel inserts in the humerus and it contracts, pulling the wing down.
So, the correct answer is 'Keel'
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