ANATOMY

Detailed explanation-1: -The spine is the place in the human body where the most irregular bones can be found. There are, in all, 33 irregular bones found here. Sphenoid bone, one of the most complex bones of the human body, is classified as irregular bone. Irregular bones in human skeleton.

Detailed explanation-2: -Irregular Bones They are primarily spongy bone that is covered with a thin layer of compact bone. The vertebrae and some of the bones in the skull are irregular bones.

Detailed explanation-3: -Irregular Bones. They consist of cancellous tissue enclosed within a thin layer of compact bone. The irregular bones are: the vertebræ, sacrum, coccyx, temporal, sphenoid, ethmoid, zygomatic, maxilla, mandible, palatine, inferior nasal concha, and hyoid.

Detailed explanation-4: -Irregular bones such as those of the face have no characteristic shape. Sesamoid bones, such as the patellae, are small and round, and are located in tendons.

Detailed explanation-5: -The outside surface is comprised of a thin layer of compact bone. Short bones are located in the hands and feet. The patella (kneecap) is also considered a short bone.