No - they contain marrow
Yes all birds have hollow bones though reptiles dont
The pneumatic bones are where the air sacs, part of the respiratory system, connect with some of the longer bones. These bones are hollow to help with flight.
The pneumatic bones are where the air sacs, part of the respiratory system, connect with some of the longer bones. These bones are hollow to help with flight.
marrpw
The thin bones that make up part of the orbit at the inner angle of the eye are called the lacrimal bones. They are small and delicate, and contribute to the formation of the tear ducts and the medial wall of the orbit.
The shaft of the bone, between the epiphyses, is called the diaphysis. It has a hollow central medullary cavity containing marrow.The shaft of long bones is called DIAPHYSIS
The Os Coxae and the sacrum are part of the inferior limb but not a part of the FREE PART of the inferior limb.there are 30 bones in the free part of an inferior limb.1. Femur Bone (Long Bone)2. Patella (Sesamoid Bone)3. Tibia (Long Bone) (No Head4. Fibula (Long Bone)5. (7) Tarsal Bones (Short Bones)6. (5) Metatarsal Bones (Long Bones)7. (14) Phalangies (Long Bones)
The Anvil is a bone in the inner ear. It is one of the 3 smallest bones in the body.
The hollow interior part of a long bone contains bone marrow.
The ears do not have bones - that is, the external structures on the sides of our heads. There are three tiny bones in each of our 'inner ears', but the outside structure is made out of cartilage, not bone.
compact bone
All bones are formed from two types of bone structure. The shaft of long bones are composed of compact bone, and the inner parts of the shaft and each end is formed of spongy bone. In addition: in a fully grown adult all of the bones are formed of actual calcified bone. In a growing body however there are still section of Primary Cartillage which can grow. These section are in small plates (called Epiphesial Plates) in the Necks of long bones like the Femur. The neck of a bone like this is where the Head (usually a rounded part that is part of a joint) connects to the main lengthy part. The exact proportions varies far to greatly to put a number on but the vast vast majority of long bones are bone.