In some bones, internal to the compact bone is spongy bone, also known as cancellous bone, composed of a honeycomb network of bones that act as supporting beams. Spongy bone is designed to bear stress from several directions, such as that exerted on the pelvis in bending or stretching. The spaces between the trabeculae are filled with red bone marrow containing the blood vessels that nourish spongy bone. Spongy bone is found in bones of the pelvis, ribs, breastbone, vertebrae, skull, and at the ends of the arm and leg bones.
- spongy bone [ˈspʌndʒi - bəun] n.松质骨
- cancellous [ˈkænsiləs] adj. 网状骨质的
- cancellous bone [ˈkænsiləs - bəun] n.松质骨
- honeycomb [ˈhʌnikəum] n.蜂窝
- beam [bi:m] n.梁
- pelvis [ˈpelvis] n.骨盆
- bend [bend] v.(使)弯曲
- stretch [stretʃ] v.伸展
- trabecula [trəˈbekjulə] n.小梁
- marrow [ˈmærəu] n.骨髓
- breastbone [ˈbrestbəun] n.胸骨
- vertebra [ˈvə:tibrə] n. 脊椎骨
