The cytoplasm of the human oocyte contains two categories of lipid bodies that are here called L1 and L2 for the sake of brevity. The L1 granules and spheres consist of phospholipids and triglycerides. The L2 bodies occur as aggregations of granules or fenestrated plates, consisting of phospholipids. The yolk granules are made up of phospholipids, proteins, and carbohydrates.

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