There are six muscles that are present in the orbit (eye socket) that attach to the eye to move it. These muscles work to move the eye up, down, side to side, and rotate the eye. The superior rectus is an extraocular muscle that attaches to the top of the eye.
Alluvium is typically made up of a variety of materials, including fine particles of silt and clay and larger particles of sand and gravel. When this loose alluvial material is deposited or cemented into a lithological unit, or lithified, it is called an alluvial deposit.ost, if not all, alluvium is very young (Quaternary in age), and is often referred to as cover because these sediments obscure the underlying bedrock. Most sedimentary material that fills a basin (basin fill) that is not lithified is typically lumped together as alluvial.
gravel. n. 1. (Geological Science) an unconsolidated mixture of rock fragments that is coarser than sand. 2. (Geological Science) geology a mixture of rock fragments with diameters in the range 4-76 mm. 3. (Pathology) pathol small rough calculi in the kidneys or bladder.. 1. An unconsolidated mixture of rock fragments or pebbles. 2. Medicine The sandlike granular material of urinary calculi. tr.v. gravÂ·eled, gravÂ·elÂ·ing, gravÂ·els or gravÂ·elled or gravÂ·elÂ·ling. 1. To apply a surface of rock fragments or pebbles to. 2.