B) The Pincer type. Cam Impingement. Cam literally means the projecting part of a cog-wheel. Cam deformity, also called the âpistol grip deformityâ or the âhead tilt deformityâ refers to an abnormal bony bump at the head neck junction of the femur.
Sedimentary rocks. Sedimentary rocks are made when sand, mud and pebbles get laid down in layers. Over time, these layers are squashed under more and more layers. Eventually, the layers are lithified â turned to rock. Sedimentary rocks can be formed in deserts, lakes, rivers and seas.
1 Sedimentary rocks form when small grains of rock, mud and sand form layers and become compacted over a very long time. 2  Rock breaks into small grains through the process called weathering. 3  Sedimentary rock can be identified as it has visible layers. 4  Examples of sedimentary rock are shale, sandstone and limestone.