blood-brain barrier, n barrier formed by epithelial cells in the capillaries that supply the brain and central nervous system. This barrier selectively allows entry of substances such as glucose, some ions, and oxygen, while blocking entry of other substances.lood-brain barrier (BBB). Etymology: AS, blod + bragen + ME, barrere. an anatomic-physiologic feature of the brain thought to consist of walls of capillaries in the central nervous system and surrounding astrocytic glial membranes. The barrier separates the parenchyma of the central nervous system from blood.
Vegetable Oil vs. Canola Oil. Canola and vegetable oils are both plant-based oils that are liquid at room temperature. They're both beneficial for heart health, and are commonly used in cooking and baking. Therefore, it may be difficult to determine which type of oil is the better option for you -- but subtle differences do exist. What Oils Are Made From. The main difference between vegetable and canola oils is the type of plant they are made from. Canola oil is extracted from rapeseed plants, which are related to mustard and cabbage plants. Vegetable oil on the other hand, is no other than soybean oil in many cases.
Sweet corn. Sweet corn (Zea mays convar. saccharata var. rugosa; also called sugar corn and pole corn) is a variety of maize with a high sugar content. Sweet corn is the result of a naturally occurring recessive mutation in the genes which control conversion of sugar to starch inside the endosperm of the corn kernel.