A bone is a rigid organ that constitutes part of the vertebral skeleton. Bones support and protect the various organs of the body, produce red and white blood cells, store minerals and also enable mobility. Bone tissue is a type of dense connective tissue. Bones come in a variety of shapes and sizes and have a complex internal and external structure. They are lightweight yet strong and hard, and serve multiple functions. Mineralized osseous tissue or bone tissue, is of two types – cortical and cancellous and gives it rigidity and a coral-like three-dimensional internal structure. Other types of tissue found in bones include marrow, endosteum, periosteum, nerves, blood vessels and cartilage.

Bone is an active tissue composed of different cells. Osteoblasts are involved in the creation and mineralisation of bone; osteocytes and osteoclasts are involved in the reabsorption of bone tissue. The mineralised matrix of bone tissue has an organic component mainly of collagen and an inorganic component of bone mineral made up of various salts.

In the human body at birth, there are over 270 bones, but many of these fuse together during development, leaving a total of 206 separate bones in the adult, not counting numerous small sesamoid bones. The largest bone in the body is the thigh-bone (femur) and the smallest is the stapes in the middle ear.

https://en.wikipedia.org/wiki/Bone

Sketch Bones

Evidence of peri mortem fractures to the nose and post mortem wear of the horns. Suspected ...

Sketch Bones Head

Remains were found inside an egg. Due to the extreme deformities, it is impossible to determine ...

Science Bones Skeleton Biology Human

You guys might wonder, what ? why red ? Well , so i drew a skeleton painted in red , orange and ...

Bone Skull Head Organ Human body

Gibbs, i warned you : do the burrito challenge or i'll keep stealing your art :3

Sketch Bones

Early ritual burial indicates the specimen was part of the proto-human community that buried it. ...

Sketch Anatomy Bones Diagram Area

Just doing some reviewing work as usual... FYI: This is the left side of your pelvis.

"As a professor of science, I assure you we did, in fact, evolve from filthy monkey-men."
Professor Farnsworth
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