Birds have pneumatic bones and they lack bone marrow, then, what synthesis the RBC, Leukocytes and other components of the blood in Aves?
Ask Doctor Vector: Bird parts
Pros and Cons of the Avian Skeletal System | Bio-aerial Locomotion 2011
Theropods and their Pneumatic Bones (Living and Extinct)
Bone-associated gene evolution and the origin of flight in birds | BMC Genomics | Full Text
Chapter 19 and 20 Notes, Birds and Mammals. Characteristics of Class Aves Forelimbs designed for flight in most birds. Epidermis is covered in feathers, - ppt download
Extreme lightweight structures: avian feathers and bones - ScienceDirect
Pneumatic bones of birds - YouTube
Do flightless birds have hollow bones or mammal-like bones? - Quora
Direct quantification of skeletal pneumaticity illuminates ecological drivers of a key avian trait | Proceedings of the Royal Society B: Biological Sciences
Which of the following is a characteristic feature of the bones of birds?Four chambered heartPneumatic bonesLarge eyesHollow nerve cord
Intraosseous catheters can be placed in birds in either the ulna or the tibiotarsus. Birds have pneumatized bones, and these must be a… | Hayvanlar, Evcil hayvanlar
All about Hollow Bones - Definition, Structure, Advantages and Key Features
ASC-202: Avian Skeletal System
Pulmonary air-sac system in a bird.a, Latex injection (blue) of the... | Download Scientific Diagram
Why Do Birds Have Hollow Bones? It's Not to Make Them Lighter | Nature and Wildlife | Discovery
Pneumatic Bones: Birds and You - The Infinite Spider
Bird Bone Structure, Anatomy & Facts - Video & Lesson Transcript | Study.com
Bird Bone Structure, Anatomy & Facts - Video & Lesson Transcript | Study.com