First Timers GD: Bones 3 (Z-AD)

The center hole in this picture below is the Haversian Canal.

There are often over 5000 fluid-filled caves connecting each bone-imprisoned living osteocyte to other osteocytes.

The buried osteocyte cells detect stresses from the nose as it bends.

One neuron can receive messages from up to 100,000 other nerves!

“Ax-axon” helps to remember that the long part of the nerve below is an axon because the fat-wrap myelin sheaths have breaks between them. “The myelin sheaths (the white, insulating ‘fat wraps’) have “breaks” in them that “Ax man” put there.

Osteocytes that are trapped in bone can live for 125 years!