This is how these work activity levels are defined. Sedentary work means that you are able to sit for up to 6 hours in an 8 hour day and lift up to 10 lbs. occasionally during a day; Light work means that you can stand and walk for up to 6 hours in an 8 hour day and lift 10 lbs. frequently and 20 lbs. occasionally; Medium work means that you can stand and walk for up to 6 hours in an 8 hour day and lift 25 lbs. frequently and 50 lbs. occasionally.
Cavum velum interpositum (CVI) is commonly an incidental asymptomatic finding on imaging studies. Encystment can occur and, in most situations, is also asymptomatic.
velum. a covering structure; see also veil. adj., adj veÂ´lar. velum interpoÂ´situm the membranous roof of the third ventricle of the brain. medullary velum either of the two portions (superior and inferior medullary velum) of the white matter of the hindbrain that form the roof of the fourth ventricle. palatine velum (velum palatiÂ´num) the soft palate; see palate.