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Anatomy Atlases: Atlas of Microscopic Anatomy: Section 1 - Cells Atlas of Microscopic Anatomy: Section 6 - Nervous Tissue

Plate 6.117 Motor End Plate

Ronald A. Bergman, Ph.D., Adel K. Afifi, M.D., Paul M. Heidger, Jr., Ph.D.
Peer Review Status: Externally Peer Reviewed

Lateral rectus muscle cross section

Plate 6.117 Motor End Plate

Cat, glutaraldehyde-osmium fixation, toluidine blue stain, 1416 x.

This is a 1 µm thin section of plastic-embedded tissue. Compare the motor end plate seen here with those seen in Plates 118 and 119. Each method provides information not usually attainable by the use of only one method.

Nerve terminals: Nonmyelinated, dip into specialized sarcolemmal folds or gutters in the muscle fiber. The nerve fiber from which these terminals arise is not seen in this thin section.

Subneural region: Specialized synaptic region of the muscle fiber. Multiple sarcolemmal folds.

Muscle fiber: Note the variation in size of fibers and in staining pattern. Compare with Plates 70 and 72.

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