Endoskeleton of Fowl or Gallus (With Diagram) | Chordata | Zoology
The endoskeleton of birds (fowl or Gallus) is quite light and completely ossified and contains no marrow. They are filled with air and are pneumatic. The endoskeleton comprises the usual two divisions, viz., the axial skeleton and the appendicular skeleton. The axial skeleton forms the thin axis of the body and includes the main skull, vertebral column, sternum and ribs. [...]