Atrophy of Disuse Metatarsal o Skeletal muscle atrophies rapidly with fracture disuse. 骨质疏松 ⊙ Osteoporosis of disuse. 正常的骨基贸 骨質疏鬆 Normal bone matrix Osteoporosis Give an another example?Atrophy of Disuse  Skeletal muscle atrophies rapidly with disuse.  Osteoporosis of disuse.  Give an another example? Metatarsal fracture