NURS113 Lecture Notes - Lecture 4: Bone, Bone Resorption, Rankl
23 Nov 2017
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A: fibroblasts, fibrocytes, osteoblasts, osteocytes, osteoclasts, and osteoprogenitor cells. Q: which minerals are found in bone? (2) A: dense and compact or lighter and trabecular. Q: the structural unit of compact bone is called the ____ or ____ system. A: small needle like or flat pieces of bone called trabeculae with open spaces. Q: in spongy bone there are no ___ present. A: by diffusion through the canaliculi from the marrow spaces. **both diaphysis and epiphysis regions can both break. A: they are capable of altering its shape and density in response to mechanical demands or injury. A: compact bone has osteoprogenitor cells which have osteoblast activity which have stimulation called mechanical stimulation from bone stress. Q: what happens if there is absence of bone stress because of immobility or altered weight bearing? (think of the bone integrity) Q: why would this occur^ (the immobility or altered weight bearing) (3) A: from illness, lack of exercise, and bad diet etc.
