The calcaneus bone is in the heal bone in the foot. It has a halge tuberosity to the posterior that forms the atachment for the Achilles tendon. The reason for the tuberosty as aposd to a direct attachment is that it moves the pivot for the joint forwards increasing the leverage the joint provides and so making it possible to lift the whole body weight using the posterior muscles of the leg.
Cancellous or spongy bone.
Cancellous bone. It is the less dense and more porous type of bone tissue found in the interior of bones.
No cancellous bone is also known as spongy bone
Cancellous tissue has spaces inside it, like a honeycomb. Compact tissue is solid and dense with no visible spaces.
cancellous bone
Cancellous.
Trabeculae
Cancellous bone
Cancellous.
cancellous bone
sella turcica
Spongy (or cancellous) bone is significantly degenerated by osteoporosis.