Schwann cells in peripheral nerves secrete a layer similar to the basal lamina called the lamina externa, boundary layer, or basement membrane. In this micrograph, the lamina externa surrounds the Sc...

Non-contractile stalk showing the striated nature of the fibrous “straws.” TEM taken on 6/12/69 by R. Allen with Philips 300 operating at 60kV. Neg. 3,570X. The raw negative was scanned with an Ep...

Electron micrograph of corn stunt spiroplasma (CSS) between 2 split layers of the basal lamina surrounding the filter chamber (part of the alimentary canal) and in the hemolymph of a vector leafhoppe...

Transmission electron micrograph of a tangential section of a rat glomerulus basement membrane. The series of images in this group have particular historic and cell biologic importance for determini...

Transmission electron micrograph of rat kidney filtration barrier. Micrograph illustrates the basement membrane between fenestrated capillary endothelium and podocyte foot processes at intermediate m...

Transmission electron micrograph of a rat kidney filtration barrier. This tangential section illustrates the fenestrated endothelium and basement membrane. The series of images in this group have p...

Transmission electron micrograph of rat kidney filtration barrier. Image is low magnification vies of the basement membrane filtration slits, urinary space, and the glomerular filtration capillary lu...

Light micrograph of a 'semithin' section (1.5 µm thick) of the dermis layer of skin from a monkey. The upper left side shows an area of (empty) fat cells surrounded by collagen fibers. The lower righ...

Collagen fibrils in the basal plate of Fundulus heteroclitus scales. The basal plate is made of thick collagen fibrils about 100 nm in diameter, which are organized into a plywood-like structure. Note...

Light micrograph of a section cut through the dermis of the scalp. The dermis is the lower (or innermost) layer of the that makes up the skin; the other layer is the epidermis. The dermis contains hai...