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.
The term ovum is usually restricted to the single female sex cell, but the term egg, in its common use to indicate a bird's egg, refers to a more complex structure, only part of which is produced in the ovary of the bird. The ovum of such an egg is a cell swollen with yolk material. The rest of the eggâe.g., the jelly mass surrounding amphibian eggs, and the shell, membranes, and egg white, or albumen, of bird eggsâis not cellular and is secreted around the ovum as it passes down the oviduct.