- Lewy body corona
The periphery of a Lewy body. In Parkinson's disease, it contains spherical accumulations of filaments arranged in a loose, radiating array.
- primary oocyte stage
The stage in oogenesis when the oocyte has a nucleus slightly larger than those of the adjacent cells and is surrounded by a layer of loose squamous epithelial cells.
- contractile actin filament bundle
An actin filament bundle in which the filaments are loosely packed (approximately 30-60 nm apart) and arranged with opposing polarities; the loose packing allows myosin (usually myosin-II) to enter the bundle.
- contractile actin filament bundle assembly
Assembly of actin filament bundles in which the filaments are loosely packed (approximately 30-60 nm apart) and arranged with opposing polarities; the loose packing allows myosin (usually myosin-II) to enter the bundle.
- sarcolemma
The outer membrane of a muscle cell, consisting of the plasma membrane, a covering basement membrane (about 100 nm thick and sometimes common to more than one fiber), and the associated loose network of collagen fibers.
- host cell filopodium
Thin, stiff protrusion extended by the leading edge of a motile host cell such as a crawling fibroblast or amoeba, or an axonal growth cone; usually approximately 0.1 um wide, 5-10 um long, can be up to 50 um long in axon growth cones; contains a loose bundle of about 20 actin filaments oriented with their plus ends pointing outward.
- obsolete lymph gland development
OBSOLETE. The process whose specific outcome is the progression of the lymph gland over time, from its formation to the mature structure. The lymph gland is a small bean-shaped organ made up of a loose meshwork of reticular tissue in which are enmeshed large numbers of lymphocytes, macrophages and accessory cells. Lymph glands are located along the lymphatic system.