The egg has a delicate, leathery outer membrane enclosing the compressed lattice that surrounds a layer of olive-green spore-bearing slime called the gleba, which contains high levels of calcium that help protect the developing fruit body during development.

The tip of the axon makes intimate contact with the sarcolemma (sahr'koh-Iem'ub; "skin of the flesh" G), which is the membrane enclosing the muscle fiber.

Doctors say her treatment has been complicated by meningitis, a inflammation of the membranes enclosing the brain or the spinal cord.

Doctors there, at the Boston University School of Medicine, discovered that she had meningitis, an infection of the membranes enclosing the brain and spinal cord.

They may be brightly colored, sometimes with a lattice- or veil-like membrane enclosing and protecting the spores.

The membranes enclosing these tiny droplets are made of molecules called phospholipids, which resemble soap molecules in an important way - one end is attracted to water while the other end is repelled by water.

A thin metallic membrane enclosing a vacuum chamber (a similar design is still used today in old-fashioned wall barometers) was gradually deformed as ambient air pressure increased during descent.

Accumulating biochemical data strongly suggest that the double membrane enclosing chloroplasts and mitochondria derived from those of the ancestral bacteria, and the phagosomal membrane disappeared during organelle evolution.

It began with membranes enclosing the chemistry of a single cell, perhaps four billion years ago.

The membrane enclosing the vesicle is similar to that of the plasma membrane, and vesicles can fuse with the plasma membrane to release their contents outside of the cell.